Home / 442,979,563.20-664,469,344.80-261,581,035.20

Finding the Fourth Proportional to 442,979,563.20, 664,469,344.80 and 261,581,035.20

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Solution

The fourth proportional to 442,979,563.20, 664,469,344.80 and 261,581,035.20 is: 392,371,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,979,563.20 : 664,469,344.80 = 261,581,035.20 : x
  2. Step 2: Convert to fraction form
    442,979,563.20/664,469,344.80 = 261,581,035.20/x
  3. Step 3: Cross multiply
    442,979,563.20x = 664,469,344.80 × 261,581,035.20
  4. Step 4: Simplify right side
    442,979,563.20x = 173,812,579,071,449,728
  5. Step 5: Solve for x
    x = 173,812,579,071,449,728/442,979,563.20
  6. Step 6: Final answer
    x = 392,371,552.80

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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.