Home / 87,309,666.07-120,487,458.68-47,617,292.71

Finding the Fourth Proportional to 87,309,666.07, 120,487,458.68 and 47,617,292.71

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Solution

The fourth proportional to 87,309,666.07, 120,487,458.68 and 47,617,292.71 is: 65,711,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,309,666.07 : 120,487,458.68 = 47,617,292.71 : x
  2. Step 2: Convert to fraction form
    87,309,666.07/120,487,458.68 = 47,617,292.71/x
  3. Step 3: Cross multiply
    87,309,666.07x = 120,487,458.68 × 47,617,292.71
  4. Step 4: Simplify right side
    87,309,666.07x = 5,737,286,587,667,415
  5. Step 5: Solve for x
    x = 5,737,286,587,667,415/87,309,666.07
  6. Step 6: Final answer
    x = 65,711,929.11

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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.