Difference between Equal to something and Equal with something

equal to something—

1. (of things) equal to another thing in price, quality, etc.:

• A table-tennis ball is roughly equal in size to a golf ball.

2. having the power or ability to do smth.:

• After our long cooping-up on shipboard we were not equal to any exertion.

equal with something— = equal to something 1:

• The Earth is very tiny, compared with sunspots. Our planet is equal in size with a modest sunspot.