Home / 99,654,410.10-149,481,615.15-81,479,127.90

Finding the Fourth Proportional to 99,654,410.10, 149,481,615.15 and 81,479,127.90

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Solution

The fourth proportional to 99,654,410.10, 149,481,615.15 and 81,479,127.90 is: 122,218,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,654,410.10 : 149,481,615.15 = 81,479,127.90 : x
  2. Step 2: Convert to fraction form
    99,654,410.10/149,481,615.15 = 81,479,127.90/x
  3. Step 3: Cross multiply
    99,654,410.10x = 149,481,615.15 × 81,479,127.90
  4. Step 4: Simplify right side
    99,654,410.10x = 12,179,631,639,505,430
  5. Step 5: Solve for x
    x = 12,179,631,639,505,430/99,654,410.10
  6. Step 6: Final answer
    x = 122,218,691.85

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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.