Home / 13,667,087.43-18,860,974.32-7,555,909.59

Finding the Fourth Proportional to 13,667,087.43, 18,860,974.32 and 7,555,909.59

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Solution

The fourth proportional to 13,667,087.43, 18,860,974.32 and 7,555,909.59 is: 10,427,372.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,087.43 : 18,860,974.32 = 7,555,909.59 : x
  2. Step 2: Convert to fraction form
    13,667,087.43/18,860,974.32 = 7,555,909.59/x
  3. Step 3: Cross multiply
    13,667,087.43x = 18,860,974.32 × 7,555,909.59
  4. Step 4: Simplify right side
    13,667,087.43x = 142,511,816,741,231.72
  5. Step 5: Solve for x
    x = 142,511,816,741,231.72/13,667,087.43
  6. Step 6: Final answer
    x = 10,427,372.87

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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.