Home / 87,430,220.80-131,145,331.20-84,910,796.80

Finding the Fourth Proportional to 87,430,220.80, 131,145,331.20 and 84,910,796.80

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Solution

The fourth proportional to 87,430,220.80, 131,145,331.20 and 84,910,796.80 is: 127,366,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,430,220.80 : 131,145,331.20 = 84,910,796.80 : x
  2. Step 2: Convert to fraction form
    87,430,220.80/131,145,331.20 = 84,910,796.80/x
  3. Step 3: Cross multiply
    87,430,220.80x = 131,145,331.20 × 84,910,796.80
  4. Step 4: Simplify right side
    87,430,220.80x = 11,135,654,568,791,900
  5. Step 5: Solve for x
    x = 11,135,654,568,791,900/87,430,220.80
  6. Step 6: Final answer
    x = 127,366,195.20

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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.