Home / 80,712,106.20-121,068,159.30-76,248,001.80

Finding the Fourth Proportional to 80,712,106.20, 121,068,159.30 and 76,248,001.80

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Solution

The fourth proportional to 80,712,106.20, 121,068,159.30 and 76,248,001.80 is: 114,372,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,712,106.20 : 121,068,159.30 = 76,248,001.80 : x
  2. Step 2: Convert to fraction form
    80,712,106.20/121,068,159.30 = 76,248,001.80/x
  3. Step 3: Cross multiply
    80,712,106.20x = 121,068,159.30 × 76,248,001.80
  4. Step 4: Simplify right side
    80,712,106.20x = 9,231,205,228,229,086
  5. Step 5: Solve for x
    x = 9,231,205,228,229,086/80,712,106.20
  6. Step 6: Final answer
    x = 114,372,002.70

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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.