Home / 442,979,562.70-664,469,344.05-261,581,034.70

Finding the Fourth Proportional to 442,979,562.70, 664,469,344.05 and 261,581,034.70

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Solution

The fourth proportional to 442,979,562.70, 664,469,344.05 and 261,581,034.70 is: 392,371,552.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,979,562.70 : 664,469,344.05 = 261,581,034.70 : x
  2. Step 2: Convert to fraction form
    442,979,562.70/664,469,344.05 = 261,581,034.70/x
  3. Step 3: Cross multiply
    442,979,562.70x = 664,469,344.05 × 261,581,034.70
  4. Step 4: Simplify right side
    442,979,562.70x = 173,812,578,543,029,280
  5. Step 5: Solve for x
    x = 173,812,578,543,029,280/442,979,562.70
  6. Step 6: Final answer
    x = 392,371,552.05

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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.