2 cylinders are proportional

Question

the smaller cylinder has a radius of 4 centimeters, which is half as large as the radius of the larger cylinder. the volume of smaller cylinder =250 cubic cemtimeters.
what is the volume of the larger cylinder?

Answer 1

radsmall/radiuslarge=heightsmall/heightlarge

volumesmall=250=PI*4^2(heighsmall)

volumelarge=?=PIradiuslarge^2*heightlarge

height small=250/16PI
Height large=?/64PI (radius large=8)

so put these into the proportion...

4/8=(250/16PI)/(?/64PI)
or

1/2=250*4/?

solve for?

Answer 2

bobpursley,cna you dumb iot down for me. thanks

Answer 3

bobpursley, i misspelled some words from my last response, i meant to say can you explain it a little better? because i still don't quiet get it.
thank you

Answer 4

pl=3 &if i solve this problem in a proportion (which is what we've been working on in math) then what would be the point of trying to do the equation
v= pie*r^2*h?
im very confused
please help me with this problem