The radius of Jupiter, the largest of the planets in our solar system, is approximately $7.14 \cdot 10^4$ km. (If $r$ is the radius of a sphere, the sphere's surface area equals $4\pi r^2$ and its volume equals $\frac{4}{3}\pi r^3$.) Assuming Jupiter is roughly spherical, estimate the volume of Jupiter.\
Express your answer in scientific notation.\
$2.486 \cdot 10^{17} km^3$\
$1.525 \cdot 10^{15} km^3$\
$15.25 \cdot 10^{14} km^3$\
$1525 \cdot 10^{12} km^3$\
$2486 \cdot 10^{14} km^3$