Home / 485,514,997.40-728,272,496.10-445,338,057.80

Finding the Fourth Proportional to 485,514,997.40, 728,272,496.10 and 445,338,057.80

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Solution

The fourth proportional to 485,514,997.40, 728,272,496.10 and 445,338,057.80 is: 668,007,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,514,997.40 : 728,272,496.10 = 445,338,057.80 : x
  2. Step 2: Convert to fraction form
    485,514,997.40/728,272,496.10 = 445,338,057.80/x
  3. Step 3: Cross multiply
    485,514,997.40x = 728,272,496.10 × 445,338,057.80
  4. Step 4: Simplify right side
    485,514,997.40x = 324,327,458,962,332,096
  5. Step 5: Solve for x
    x = 324,327,458,962,332,096/485,514,997.40
  6. Step 6: Final answer
    x = 668,007,086.70

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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.