હવે ઘનતા = (દળ/કદ) 

$\therefore$ ઘનતા  $\,\rho  = \frac{A}{{\frac{4}{3}\pi {R^3}}}\,$

$\therefore$ $\frac{{{\rho _{{A_1}}}}}{{{\rho _{{A_2}}}}} = \frac{{{A_1}}}{{\frac{4}{3}\pi R_1^3}} \times \frac{{\frac{4}{3}\pi R_2^3}}{{{A_2}}}\,\,\,\, $

$= \frac{{{A_1}}}{{{A_2}}} \times \frac{{R_2^3}}{{R_1^3}}$

 પણ ${\text{R}} = {{\text{R}}_{\text{0}}}{{\text{A}}^{\frac{{\text{1}}}{{\text{3}}}}}$ પરથી, 

${{\text{R}}^{\text{3}}} = {R_0}A\,\,\,$

$\therefore \,\,\,\frac{{{\rho _{{A_1}}}}}{{{\rho _{{A_2}}}}} = \frac{{{A_1}}}{{{A_2}}} \times \frac{{{A_2}}}{{{A_1}}} = 1:1$