Home / 84,222,002.20-126,333,003.30-79,120,168.60

Finding the Fourth Proportional to 84,222,002.20, 126,333,003.30 and 79,120,168.60

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Solution

The fourth proportional to 84,222,002.20, 126,333,003.30 and 79,120,168.60 is: 118,680,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,222,002.20 : 126,333,003.30 = 79,120,168.60 : x
  2. Step 2: Convert to fraction form
    84,222,002.20/126,333,003.30 = 79,120,168.60/x
  3. Step 3: Cross multiply
    84,222,002.20x = 126,333,003.30 × 79,120,168.60
  4. Step 4: Simplify right side
    84,222,002.20x = 9,995,488,520,840,356
  5. Step 5: Solve for x
    x = 9,995,488,520,840,356/84,222,002.20
  6. Step 6: Final answer
    x = 118,680,252.90

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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.