Home / 87,231,765-120,380,657.46-48,074,951.64

Finding the Fourth Proportional to 87,231,765, 120,380,657.46 and 48,074,951.64

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Solution

The fourth proportional to 87,231,765, 120,380,657.46 and 48,074,951.64 is: 66,343,886.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,231,765 : 120,380,657.46 = 48,074,951.64 : x
  2. Step 2: Convert to fraction form
    87,231,765/120,380,657.46 = 48,074,951.64/x
  3. Step 3: Cross multiply
    87,231,765x = 120,380,657.46 × 48,074,951.64
  4. Step 4: Simplify right side
    87,231,765x = 5,787,294,285,780,905
  5. Step 5: Solve for x
    x = 5,787,294,285,780,905/87,231,765
  6. Step 6: Final answer
    x = 66,343,886.15

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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.