What it means
AばAほど、B expresses a proportional relationship: as the degree or amount of A increases, B also changes in the stated direction. The same pattern can describe a stronger degree of an adjective, a greater extent of an action, or a more pronounced quality or category. The first A uses the appropriate conditional form, while the second A uses a form that can be followed by ほど.
Usage note
With nouns and na-adjectives, use the であれば／であるほど pattern rather than attaching ば directly to the noun or adjective. The B clause does not have to be positive; it can describe something becoming smaller, more difficult, or otherwise changing as A increases.
How to use it
商品が高級品であれば高級品であるほど、扱いに注意が必要になります。
The more high-end the product is, the more care is needed in handling it.
部屋が静かであれば静かであるほど、勉強に集中できます。
The quieter the room is, the more easily one can concentrate on studying.
荷物が軽ければ軽いほど、旅行は楽になります。
The lighter the luggage is, the easier the trip becomes.
練習すれば練習するほど、演奏が上達します。
The more one practices, the better one's performance becomes.
商品が高級品であれば高級品であるほど、扱いに注意が必要になる。
The more high-end the product is, the more care is needed in handling it.
部屋が静かであれば静かであるほど、勉強に集中できる。
The quieter the room is, the more easily one can concentrate on studying.
荷物が軽ければ軽いほど、旅行は楽になる。
The lighter the luggage is, the easier the trip becomes.
練習すれば練習するほど、演奏が上達する。
The more one practices, the better one's performance becomes.
Example sentences
荷物が軽ければ軽いほど、遠くまで歩きやすくなります。
The lighter the luggage is, the easier it becomes to walk farther.
駅に近ければ近いほど、家賃は高くなります。
The closer a place is to the station, the higher the rent becomes.
練習すればするほど、発表で緊張しなくなります。
The more you practice, the less nervous you become during presentations.