Why is gravitational force the weakest force in nature?

The Gravitational Force is the weakest of the four basic forces because of the Gravitational Constant. The value of the universal gravitational constant is small compared to the size of the electrostatic constant in a vacuum. The formulas $F=\frac{\mathrm{GMm}}{R^2}$ and $F=k\frac{q1q2}{R^2}$ represent the gravitational force between two masses and Coulomb's force between two electrically charged bodies, respectively. The value of $G(6.67\times {10}^{-11})$ is very less than that of $k(9.0\times {10}^9)$. The gravitational pull is weaker than the electromagnetic force, as demonstrated by this simple example. As a result, gravity is the weakest force in the universe.