Home / 13,612,998.60-20,419,497.90-6,438,545.10

Finding the Fourth Proportional to 13,612,998.60, 20,419,497.90 and 6,438,545.10

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Solution

The fourth proportional to 13,612,998.60, 20,419,497.90 and 6,438,545.10 is: 9,657,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,998.60 : 20,419,497.90 = 6,438,545.10 : x
  2. Step 2: Convert to fraction form
    13,612,998.60/20,419,497.90 = 6,438,545.10/x
  3. Step 3: Cross multiply
    13,612,998.60x = 20,419,497.90 × 6,438,545.10
  4. Step 4: Simplify right side
    13,612,998.60x = 131,471,858,148,505.27
  5. Step 5: Solve for x
    x = 131,471,858,148,505.27/13,612,998.60
  6. Step 6: Final answer
    x = 9,657,817.65

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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.