1. The problem is to find the volume of a sphere. 2. The formula for the volume of a sphere is $$V = \frac{4}{3} \pi r^3$$ where $r$ is the radius of the sphere. 3. To solve, you need to know the radius $r$ of the sphere. 4. Once you have $r$, substitute it into the formula and calculate the volume. 5. For example, if $r = 3$, then $$V = \frac{4}{3} \pi (3)^3 = \frac{4}{3} \pi 27 = 36 \pi$$. 6. This gives the volume in cubic units. 7. Without a specific radius, the volume is expressed as $$V = \frac{4}{3} \pi r^3$$.