Home / 20,784,234.83-28,681,087.11-11,491,267.64

Finding the Fourth Proportional to 20,784,234.83, 28,681,087.11 and 11,491,267.64

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Solution

The fourth proportional to 20,784,234.83, 28,681,087.11 and 11,491,267.64 is: 15,857,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,234.83 : 28,681,087.11 = 11,491,267.64 : x
  2. Step 2: Convert to fraction form
    20,784,234.83/28,681,087.11 = 11,491,267.64/x
  3. Step 3: Cross multiply
    20,784,234.83x = 28,681,087.11 × 11,491,267.64
  4. Step 4: Simplify right side
    20,784,234.83x = 329,582,048,187,164.12
  5. Step 5: Solve for x
    x = 329,582,048,187,164.12/20,784,234.83
  6. Step 6: Final answer
    x = 15,857,309.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.