Home / 618,229,123.92-853,176,651.48-339,780,517.20

Finding the Fourth Proportional to 618,229,123.92, 853,176,651.48 and 339,780,517.20

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Solution

The fourth proportional to 618,229,123.92, 853,176,651.48 and 339,780,517.20 is: 468,908,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,229,123.92 : 853,176,651.48 = 339,780,517.20 : x
  2. Step 2: Convert to fraction form
    618,229,123.92/853,176,651.48 = 339,780,517.20/x
  3. Step 3: Cross multiply
    618,229,123.92x = 853,176,651.48 × 339,780,517.20
  4. Step 4: Simplify right side
    618,229,123.92x = 289,892,803,902,838,528
  5. Step 5: Solve for x
    x = 289,892,803,902,838,528/618,229,123.92
  6. Step 6: Final answer
    x = 468,908,358.87

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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.