Home / 485,117,363.70-727,676,045.55-178,345,998.90

Finding the Fourth Proportional to 485,117,363.70, 727,676,045.55 and 178,345,998.90

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Solution

The fourth proportional to 485,117,363.70, 727,676,045.55 and 178,345,998.90 is: 267,518,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,117,363.70 : 727,676,045.55 = 178,345,998.90 : x
  2. Step 2: Convert to fraction form
    485,117,363.70/727,676,045.55 = 178,345,998.90/x
  3. Step 3: Cross multiply
    485,117,363.70x = 727,676,045.55 × 178,345,998.90
  4. Step 4: Simplify right side
    485,117,363.70x = 129,778,111,219,216,640
  5. Step 5: Solve for x
    x = 129,778,111,219,216,640/485,117,363.70
  6. Step 6: Final answer
    x = 267,518,998.35

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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.