Home / 87,377,350.38-120,583,639.74-47,687,054.52

Finding the Fourth Proportional to 87,377,350.38, 120,583,639.74 and 47,687,054.52

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Solution

The fourth proportional to 87,377,350.38, 120,583,639.74 and 47,687,054.52 is: 65,809,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,377,350.38 : 120,583,639.74 = 47,687,054.52 : x
  2. Step 2: Convert to fraction form
    87,377,350.38/120,583,639.74 = 47,687,054.52/x
  3. Step 3: Cross multiply
    87,377,350.38x = 120,583,639.74 × 47,687,054.52
  4. Step 4: Simplify right side
    87,377,350.38x = 5,750,278,602,501,419
  5. Step 5: Solve for x
    x = 5,750,278,602,501,419/87,377,350.38
  6. Step 6: Final answer
    x = 65,809,715.88

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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.