Home / 81,671,755.96-122,732,593.62-43,361,944.12

Finding the Fourth Proportional to 81,671,755.96, 122,732,593.62 and 43,361,944.12

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Solution

The fourth proportional to 81,671,755.96, 122,732,593.62 and 43,361,944.12 is: 65,162,353.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,671,755.96 : 122,732,593.62 = 43,361,944.12 : x
  2. Step 2: Convert to fraction form
    81,671,755.96/122,732,593.62 = 43,361,944.12/x
  3. Step 3: Cross multiply
    81,671,755.96x = 122,732,593.62 × 43,361,944.12
  4. Step 4: Simplify right side
    81,671,755.96x = 5,321,923,866,253,108
  5. Step 5: Solve for x
    x = 5,321,923,866,253,108/81,671,755.96
  6. Step 6: Final answer
    x = 65,162,353.91

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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.