Home / 10,979,894.20-16,469,841.30-8,145,542.20

Finding the Fourth Proportional to 10,979,894.20, 16,469,841.30 and 8,145,542.20

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Solution

The fourth proportional to 10,979,894.20, 16,469,841.30 and 8,145,542.20 is: 12,218,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979,894.20 : 16,469,841.30 = 8,145,542.20 : x
  2. Step 2: Convert to fraction form
    10,979,894.20/16,469,841.30 = 8,145,542.20/x
  3. Step 3: Cross multiply
    10,979,894.20x = 16,469,841.30 × 8,145,542.20
  4. Step 4: Simplify right side
    10,979,894.20x = 134,155,787,336,452.88
  5. Step 5: Solve for x
    x = 134,155,787,336,452.88/10,979,894.20
  6. Step 6: Final answer
    x = 12,218,313.30

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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.