Finding the Fourth Proportional to 472,394,381.70, 708,591,572.55 and 414,998,753.70
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Solution
The fourth proportional to 472,394,381.70, 708,591,572.55 and 414,998,753.70 is: 622,498,130.55
Step by Step Solution
- Step 1: Write the proportion equation
472,394,381.70 : 708,591,572.55 = 414,998,753.70 : x - Step 2: Convert to fraction form
472,394,381.70/708,591,572.55 = 414,998,753.70/x - Step 3: Cross multiply
472,394,381.70x = 708,591,572.55 × 414,998,753.70 - Step 4: Simplify right side
472,394,381.70x = 294,064,619,490,573,120 - Step 5: Solve for x
x = 294,064,619,490,573,120/472,394,381.70 - Step 6: Final answer
x = 622,498,130.55
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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.