Home / 20,784,013.56-28,681,489.98-11,491,226.46

Finding the Fourth Proportional to 20,784,013.56, 28,681,489.98 and 11,491,226.46

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Solution

The fourth proportional to 20,784,013.56, 28,681,489.98 and 11,491,226.46 is: 15,857,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,013.56 : 28,681,489.98 = 11,491,226.46 : x
  2. Step 2: Convert to fraction form
    20,784,013.56/28,681,489.98 = 11,491,226.46/x
  3. Step 3: Cross multiply
    20,784,013.56x = 28,681,489.98 × 11,491,226.46
  4. Step 4: Simplify right side
    20,784,013.56x = 329,585,496,570,400.88
  5. Step 5: Solve for x
    x = 329,585,496,570,400.88/20,784,013.56
  6. Step 6: Final answer
    x = 15,857,644.42

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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.