Finding the Fourth Proportional to 1,579,327,171.64, 2,369,136,389.97 and 515,755,593.19
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Solution
The fourth proportional to 1,579,327,171.64, 2,369,136,389.97 and 515,755,593.19 is: 773,680,948.51
Step by Step Solution
- Step 1: Write the proportion equation
1,579,327,171.64 : 2,369,136,389.97 = 515,755,593.19 : x - Step 2: Convert to fraction form
1,579,327,171.64/2,369,136,389.97 = 515,755,593.19/x - Step 3: Cross multiply
1,579,327,171.64x = 2,369,136,389.97 × 515,755,593.19 - Step 4: Simplify right side
1,579,327,171.64x = 1,221,895,344,161,913,856 - Step 5: Solve for x
x = 1,221,895,344,161,913,856/1,579,327,171.64 - Step 6: Final answer
x = 773,680,948.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.