Most people assume that most planets have a spherical shape. It is actually more of an ellipsoid shape, but not an exact ellipsoid, since there may be numerous mountains and valleys. Researchers have found that a datum, or a reference ellipsoid, that is offset from the center of the planet can be used to accurately map different regions. According to one datum, this reference ellipsoid assumes an equatorial radius of 6,381,137 m and a polar radius of 6,365,753.2141 m. Use the formula, $V = \frac{4ab^2\pi}{3}$, for the volume of an ellipsoid formed by rotating an ellipse with equation $y = \frac{b}{a}\sqrt{a^2 - x^2}$ about the x-axis, to estimate the volume of the planet.
The volume of the planet is approximately 0 m$^3$.
(Use scientific notation. Use the multiplication symbol in the math palette as needed. Round to three decimal places as needed.)