Home / 80,172,331.20-120,258,496.80-59,764,996.80

Finding the Fourth Proportional to 80,172,331.20, 120,258,496.80 and 59,764,996.80

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Solution

The fourth proportional to 80,172,331.20, 120,258,496.80 and 59,764,996.80 is: 89,647,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,172,331.20 : 120,258,496.80 = 59,764,996.80 : x
  2. Step 2: Convert to fraction form
    80,172,331.20/120,258,496.80 = 59,764,996.80/x
  3. Step 3: Cross multiply
    80,172,331.20x = 120,258,496.80 × 59,764,996.80
  4. Step 4: Simplify right side
    80,172,331.20x = 7,187,248,676,424,810
  5. Step 5: Solve for x
    x = 7,187,248,676,424,810/80,172,331.20
  6. Step 6: Final answer
    x = 89,647,495.20

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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.