The constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality. <---definition
So what do you need us to do for you?
Answer:
4:3
Step-by-step explanation:
Think of it like this:
4 beagles to 3 golden retrievers
4 beagles : 3 golden retrievers
4 : 3
Just take out everything but the numbers.
V=πr^2 h/3
Replace the given values in place of the expression