Home / 801,202,001.40-1,201,803,002.10-728,500,872.60

Finding the Fourth Proportional to 801,202,001.40, 1,201,803,002.10 and 728,500,872.60

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Solution

The fourth proportional to 801,202,001.40, 1,201,803,002.10 and 728,500,872.60 is: 1,092,751,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,202,001.40 : 1,201,803,002.10 = 728,500,872.60 : x
  2. Step 2: Convert to fraction form
    801,202,001.40/1,201,803,002.10 = 728,500,872.60/x
  3. Step 3: Cross multiply
    801,202,001.40x = 1,201,803,002.10 × 728,500,872.60
  4. Step 4: Simplify right side
    801,202,001.40x = 875,514,535,723,149,568
  5. Step 5: Solve for x
    x = 875,514,535,723,149,568/801,202,001.40
  6. Step 6: Final answer
    x = 1,092,751,308.90

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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.