A positive ion A and a negative ion B has charges $6.67\times {{10}^{{-19}}}\text{C}$ and $9.6\times {{10}^{{-10}}}\text{C}$, and masses $19.2\times {{10}^{{-27}}}~\text{kg}$ and $9\times {{10}^{{-27}}}~\text{kg}$ respectively. At an instant, the ions are separated by a certain distance r. At that instant the ratio of the magnitudes of electrostatic force to gravitational force is $\text{P}\times {{10}^{{-13}}}$ , where the value of P is _________ .
(Take $\frac{1}{{4\pi {{\varepsilon }_{0}}}}=9\times {{10}^{9}}\text{N}{{\text{m}}^{2}}{{\text{C}}^{{-1}}}$ and universal gravitational constant as $6.67\times {{10}^{{-11}}}\text{N}{{\text{m}}^{2}}~\text{k}{{\text{g}}^{{-2}}}$)