Home / 80,644,057.60-121,218,028.80-79,132,403.20

Finding the Fourth Proportional to 80,644,057.60, 121,218,028.80 and 79,132,403.20

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Solution

The fourth proportional to 80,644,057.60, 121,218,028.80 and 79,132,403.20 is: 118,945,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,644,057.60 : 121,218,028.80 = 79,132,403.20 : x
  2. Step 2: Convert to fraction form
    80,644,057.60/121,218,028.80 = 79,132,403.20/x
  3. Step 3: Cross multiply
    80,644,057.60x = 121,218,028.80 × 79,132,403.20
  4. Step 4: Simplify right side
    80,644,057.60x = 9,592,273,930,110,812
  5. Step 5: Solve for x
    x = 9,592,273,930,110,812/80,644,057.60
  6. Step 6: Final answer
    x = 118,945,824.60

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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.