Home / 115,391,479.70-172,940,253.15-47,157,079.70

Finding the Fourth Proportional to 115,391,479.70, 172,940,253.15 and 47,157,079.70

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Solution

The fourth proportional to 115,391,479.70, 172,940,253.15 and 47,157,079.70 is: 70,675,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,391,479.70 : 172,940,253.15 = 47,157,079.70 : x
  2. Step 2: Convert to fraction form
    115,391,479.70/172,940,253.15 = 47,157,079.70/x
  3. Step 3: Cross multiply
    115,391,479.70x = 172,940,253.15 × 47,157,079.70
  4. Step 4: Simplify right side
    115,391,479.70x = 8,155,357,301,132,727
  5. Step 5: Solve for x
    x = 8,155,357,301,132,727/115,391,479.70
  6. Step 6: Final answer
    x = 70,675,558.74

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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.