Home / 15,786,998.28-21,786,057.41-8,543,654.28

Finding the Fourth Proportional to 15,786,998.28, 21,786,057.41 and 8,543,654.28

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Solution

The fourth proportional to 15,786,998.28, 21,786,057.41 and 8,543,654.28 is: 11,790,242.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,998.28 : 21,786,057.41 = 8,543,654.28 : x
  2. Step 2: Convert to fraction form
    15,786,998.28/21,786,057.41 = 8,543,654.28/x
  3. Step 3: Cross multiply
    15,786,998.28x = 21,786,057.41 × 8,543,654.28
  4. Step 4: Simplify right side
    15,786,998.28x = 186,132,542,592,553.94
  5. Step 5: Solve for x
    x = 186,132,542,592,553.94/15,786,998.28
  6. Step 6: Final answer
    x = 11,790,242.79

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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.