Home / 18,873,217.71-28,309,542.10-8,491,104.84

Finding the Fourth Proportional to 18,873,217.71, 28,309,542.10 and 8,491,104.84

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Solution

The fourth proportional to 18,873,217.71, 28,309,542.10 and 8,491,104.84 is: 12,736,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873,217.71 : 28,309,542.10 = 8,491,104.84 : x
  2. Step 2: Convert to fraction form
    18,873,217.71/28,309,542.10 = 8,491,104.84/x
  3. Step 3: Cross multiply
    18,873,217.71x = 28,309,542.10 × 8,491,104.84
  4. Step 4: Simplify right side
    18,873,217.71x = 240,379,289,943,493.78
  5. Step 5: Solve for x
    x = 240,379,289,943,493.78/18,873,217.71
  6. Step 6: Final answer
    x = 12,736,529.28

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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.