If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r in (-oo:+oo)
2.46 = 3.14*(4/3)*r^3 // - 3.14*(4/3)*r^3
2.46-(3.14*(4/3)*r^3) = 0
2.46-4.18666667*r^3 = 0
-4.18666667*r^3 = -2.46 // : -4.18666667
r^3 = 0.58757962
r^3 = 0.58757962 // ^ 1/3
r = 0.58757962^(1/3)
r = 0.58757962^(1/3)
| -3m-11+16m=15 | | Ab-c=4 | | 3z^2-14z=5 | | S=2LH+2LW | | 4q^2-12q=0 | | 9kx^2+2kx+3=0 | | 2k^2-17k=9 | | 2k^2-17k=0 | | ab=21 | | 7a=24 | | X^2-9=3x-1 | | 4/11=20x/33 | | X=8+-1x | | v=3/5=1/4 | | (2x-7)/(9x-5) | | 2x-7/9x-5 | | 4t^2-11t=3 | | 228=-19p | | 3+2x+1+3+2x+1=16 | | V-4/3=5/4 | | 19.1=13.1-n | | 4x^3=(x/3) | | 12x-4+6x+3=10 | | (w/2)-3h=53 | | 4.36=4/3(3.14)r^3 | | p-5/8=19/8 | | 6[4*(72-63)/3] | | 21(2+x)12x=44 | | X-x+5x-3=3x+5 | | 0.20(y-3)+0.02y=0.06y-1.4 | | (3/10)x-2=(1/5)x | | -1/11-2/11 |