Home / 12,491,635.80-18,737,453.70-3,972,833.40

Finding the Fourth Proportional to 12,491,635.80, 18,737,453.70 and 3,972,833.40

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Solution

The fourth proportional to 12,491,635.80, 18,737,453.70 and 3,972,833.40 is: 5,959,250.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,635.80 : 18,737,453.70 = 3,972,833.40 : x
  2. Step 2: Convert to fraction form
    12,491,635.80/18,737,453.70 = 3,972,833.40/x
  3. Step 3: Cross multiply
    12,491,635.80x = 18,737,453.70 × 3,972,833.40
  4. Step 4: Simplify right side
    12,491,635.80x = 74,440,781,890,313.58
  5. Step 5: Solve for x
    x = 74,440,781,890,313.58/12,491,635.80
  6. Step 6: Final answer
    x = 5,959,250.10

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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.