Finding the Fourth Proportional to 71,782,327.68, 99,059,107.20 and 39,187,279.68
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Solution
The fourth proportional to 71,782,327.68, 99,059,107.20 and 39,187,279.68 is: 54,078,170.27
Step by Step Solution
- Step 1: Write the proportion equation
71,782,327.68 : 99,059,107.20 = 39,187,279.68 : x - Step 2: Convert to fraction form
71,782,327.68/99,059,107.20 = 39,187,279.68/x - Step 3: Cross multiply
71,782,327.68x = 99,059,107.20 × 39,187,279.68 - Step 4: Simplify right side
71,782,327.68x = 3,881,856,938,697,502 - Step 5: Solve for x
x = 3,881,856,938,697,502/71,782,327.68 - Step 6: Final answer
x = 54,078,170.27
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.