Home / 424,411,096.40-636,711,593.16-129,329,310.56

Finding the Fourth Proportional to 424,411,096.40, 636,711,593.16 and 129,329,310.56

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Solution

The fourth proportional to 424,411,096.40, 636,711,593.16 and 129,329,310.56 is: 194,022,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,411,096.40 : 636,711,593.16 = 129,329,310.56 : x
  2. Step 2: Convert to fraction form
    424,411,096.40/636,711,593.16 = 129,329,310.56/x
  3. Step 3: Cross multiply
    424,411,096.40x = 636,711,593.16 × 129,329,310.56
  4. Step 4: Simplify right side
    424,411,096.40x = 82,345,471,368,942,016
  5. Step 5: Solve for x
    x = 82,345,471,368,942,016/424,411,096.40
  6. Step 6: Final answer
    x = 194,022,899.18

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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.