Decimate
To destroy a large proportion of is called
decimate
decimate
How about 'demolish'?
When you destroy a large proportion of something, it is often referred to as "decimation." The term originally described the Roman practice of killing one in every ten soldiers as a punishment for a unit's failure, but it has since come to mean widespread destruction or significant reduction of a group or population. In broader contexts, it can also imply severe damage or loss.
Swarm of locust can be one that can destroy whole fields of crops.
... a proportion.... a proportion.... a proportion.... a proportion.
A large proportion of my daily activities are spent in school.
the first and fourth terms of a proportion are called the means ?
YES. A statement that two ratios are equal is called a proportion.
proportion
Vanilla pudding contains a large proportion of milk.