Solve 4pi*10^-75000*2.5/0.2

$$4 \pi \times { 10 }^{ -7 } \frac{ 5000 \times 2.5 }{ 0.2 }$$

Evaluate

$$\frac{\pi }{40}\approx 0.078539816$$

Solution Steps

Calculate 10 to the power of -7 and get \frac{1}{10000000}.

$$4\pi \times \frac{1}{10000000}\times \frac{5000\times 2.5}{0.2}$$

Multiply 4 and \frac{1}{10000000} to get \frac{1}{2500000}.

$$\frac{1}{2500000}\pi \times \frac{5000\times 2.5}{0.2}$$

Multiply 5000 and 2.5 to get 12500.

$$\frac{1}{2500000}\pi \times \frac{12500}{0.2}$$

Expand \frac{12500}{0.2} by multiplying both numerator and the denominator by 10.

$$\frac{1}{2500000}\pi \times \frac{125000}{2}$$

Divide 125000 by 2 to get 62500.

$$\frac{1}{2500000}\pi \times 62500$$

Multiply \frac{1}{2500000} and 62500 to get \frac{1}{40}.

$$\frac{1}{40}\pi$$