Home / 71,320,498.20-106,980,747.30-66,502,099.80

Finding the Fourth Proportional to 71,320,498.20, 106,980,747.30 and 66,502,099.80

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Solution

The fourth proportional to 71,320,498.20, 106,980,747.30 and 66,502,099.80 is: 99,753,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,320,498.20 : 106,980,747.30 = 66,502,099.80 : x
  2. Step 2: Convert to fraction form
    71,320,498.20/106,980,747.30 = 66,502,099.80/x
  3. Step 3: Cross multiply
    71,320,498.20x = 106,980,747.30 × 66,502,099.80
  4. Step 4: Simplify right side
    71,320,498.20x = 7,114,444,333,623,180
  5. Step 5: Solve for x
    x = 7,114,444,333,623,180/71,320,498.20
  6. Step 6: Final answer
    x = 99,753,149.70

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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.