Home / 215,131,043.70-322,696,565.55-137,646,945.90

Finding the Fourth Proportional to 215,131,043.70, 322,696,565.55 and 137,646,945.90

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Solution

The fourth proportional to 215,131,043.70, 322,696,565.55 and 137,646,945.90 is: 206,470,418.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,131,043.70 : 322,696,565.55 = 137,646,945.90 : x
  2. Step 2: Convert to fraction form
    215,131,043.70/322,696,565.55 = 137,646,945.90/x
  3. Step 3: Cross multiply
    215,131,043.70x = 322,696,565.55 × 137,646,945.90
  4. Step 4: Simplify right side
    215,131,043.70x = 44,418,196,700,376,656
  5. Step 5: Solve for x
    x = 44,418,196,700,376,656/215,131,043.70
  6. Step 6: Final answer
    x = 206,470,418.85

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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.