Home / 115,391,436.20-172,940,187.90-47,157,036.20

Finding the Fourth Proportional to 115,391,436.20, 172,940,187.90 and 47,157,036.20

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Solution

The fourth proportional to 115,391,436.20, 172,940,187.90 and 47,157,036.20 is: 70,675,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,391,436.20 : 172,940,187.90 = 47,157,036.20 : x
  2. Step 2: Convert to fraction form
    115,391,436.20/172,940,187.90 = 47,157,036.20/x
  3. Step 3: Cross multiply
    115,391,436.20x = 172,940,187.90 × 47,157,036.20
  4. Step 4: Simplify right side
    115,391,436.20x = 8,155,346,701,235,103
  5. Step 5: Solve for x
    x = 8,155,346,701,235,103/115,391,436.20
  6. Step 6: Final answer
    x = 70,675,493.52

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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.