Home / 485,280,778.60-727,921,167.90-482,257,469.80

Finding the Fourth Proportional to 485,280,778.60, 727,921,167.90 and 482,257,469.80

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Solution

The fourth proportional to 485,280,778.60, 727,921,167.90 and 482,257,469.80 is: 723,386,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,280,778.60 : 727,921,167.90 = 482,257,469.80 : x
  2. Step 2: Convert to fraction form
    485,280,778.60/727,921,167.90 = 482,257,469.80/x
  3. Step 3: Cross multiply
    485,280,778.60x = 727,921,167.90 × 482,257,469.80
  4. Step 4: Simplify right side
    485,280,778.60x = 351,045,420,645,315,008
  5. Step 5: Solve for x
    x = 351,045,420,645,315,008/485,280,778.60
  6. Step 6: Final answer
    x = 723,386,204.70

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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.