Home / 15,517,408.28-21,414,687.76-8,641,890.34

Finding the Fourth Proportional to 15,517,408.28, 21,414,687.76 and 8,641,890.34

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Solution

The fourth proportional to 15,517,408.28, 21,414,687.76 and 8,641,890.34 is: 11,926,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517,408.28 : 21,414,687.76 = 8,641,890.34 : x
  2. Step 2: Convert to fraction form
    15,517,408.28/21,414,687.76 = 8,641,890.34/x
  3. Step 3: Cross multiply
    15,517,408.28x = 21,414,687.76 × 8,641,890.34
  4. Step 4: Simplify right side
    15,517,408.28x = 185,063,383,244,525.91
  5. Step 5: Solve for x
    x = 185,063,383,244,525.91/15,517,408.28
  6. Step 6: Final answer
    x = 11,926,178.65

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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.