Home / 18,678,614.20-27,991,584.34-8,820,158.88

Finding the Fourth Proportional to 18,678,614.20, 27,991,584.34 and 8,820,158.88

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Solution

The fourth proportional to 18,678,614.20, 27,991,584.34 and 8,820,158.88 is: 13,217,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,614.20 : 27,991,584.34 = 8,820,158.88 : x
  2. Step 2: Convert to fraction form
    18,678,614.20/27,991,584.34 = 8,820,158.88/x
  3. Step 3: Cross multiply
    18,678,614.20x = 27,991,584.34 × 8,820,158.88
  4. Step 4: Simplify right side
    18,678,614.20x = 246,890,221,181,719.97
  5. Step 5: Solve for x
    x = 246,890,221,181,719.97/18,678,614.20
  6. Step 6: Final answer
    x = 13,217,801.84

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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.