Home / 87,755,055.20-131,632,582.80-42,405,423.20

Finding the Fourth Proportional to 87,755,055.20, 131,632,582.80 and 42,405,423.20

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Solution

The fourth proportional to 87,755,055.20, 131,632,582.80 and 42,405,423.20 is: 63,608,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,755,055.20 : 131,632,582.80 = 42,405,423.20 : x
  2. Step 2: Convert to fraction form
    87,755,055.20/131,632,582.80 = 42,405,423.20/x
  3. Step 3: Cross multiply
    87,755,055.20x = 131,632,582.80 × 42,405,423.20
  4. Step 4: Simplify right side
    87,755,055.20x = 5,581,935,380,543,041
  5. Step 5: Solve for x
    x = 5,581,935,380,543,041/87,755,055.20
  6. Step 6: Final answer
    x = 63,608,134.80

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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.