Volume of a sphere is defined:
[tex]V=\frac{4\pi r}{3}[/tex]
Solve for radius.
[tex]3V=4\pi r\Longrightarrow r=\frac{3V}{4\pi}[/tex]
Now put in the data.
[tex]
r=\frac{3\cdot2143.572}{4\cdot3.14} \\ \\
r=\frac{6430.716}{12.56}\approx\boxed{30010}
[/tex]
The radius of the sphere is 30010ft.
Hope this helps.
r3t40
