Solve 1.4*4.5*10^7=4.2*10^3*50*m

$$1.4 \times 4.5 \times 10 ^ { 7 } = 4.2 \times 10 ^ { 3 } \times 50 \times m$$

Solve for m

$$m=300$$

Steps for Solving Linear Equation

Multiply 1.4 and 4.5 to get 6.3.

$$6.3\times 10^{7}=4.2\times 10^{3}\times 50m$$

Calculate 10 to the power of 7 and get 10000000.

$$6.3\times 10000000=4.2\times 10^{3}\times 50m$$

Multiply 6.3 and 10000000 to get 63000000.

$$63000000=4.2\times 10^{3}\times 50m$$

Calculate 10 to the power of 3 and get 1000.

$$63000000=4.2\times 1000\times 50m$$

Multiply 4.2 and 1000 to get 4200.

$$63000000=4200\times 50m$$

Multiply 4200 and 50 to get 210000.

$$63000000=210000m$$

Swap sides so that all variable terms are on the left hand side.

$$210000m=63000000$$

Divide both sides by 210000.

$$m=\frac{63000000}{210000}$$

Divide 63000000 by 210000 to get 300.

$$m=300$$