Finding the Fourth Proportional to 545,417,761.43, 752,654,764.99 and 307,257,398.03
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Solution
The fourth proportional to 545,417,761.43, 752,654,764.99 and 307,257,398.03 is: 424,002,958.94
Step by Step Solution
- Step 1: Write the proportion equation
545,417,761.43 : 752,654,764.99 = 307,257,398.03 : x - Step 2: Convert to fraction form
545,417,761.43/752,654,764.99 = 307,257,398.03/x - Step 3: Cross multiply
545,417,761.43x = 752,654,764.99 × 307,257,398.03 - Step 4: Simplify right side
545,417,761.43x = 231,258,744,705,708,512 - Step 5: Solve for x
x = 231,258,744,705,708,512/545,417,761.43 - Step 6: Final answer
x = 424,002,958.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.