Home / 18,309,125.80-27,432,195.90-11,916,087.40

Finding the Fourth Proportional to 18,309,125.80, 27,432,195.90 and 11,916,087.40

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Solution

The fourth proportional to 18,309,125.80, 27,432,195.90 and 11,916,087.40 is: 17,853,634.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309,125.80 : 27,432,195.90 = 11,916,087.40 : x
  2. Step 2: Convert to fraction form
    18,309,125.80/27,432,195.90 = 11,916,087.40/x
  3. Step 3: Cross multiply
    18,309,125.80x = 27,432,195.90 × 11,916,087.40
  4. Step 4: Simplify right side
    18,309,125.80x = 326,884,443,918,321.62
  5. Step 5: Solve for x
    x = 326,884,443,918,321.62/18,309,125.80
  6. Step 6: Final answer
    x = 17,853,634.71

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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.