Home / 12,491,712.30-18,737,568.45-9,653,861.10

Finding the Fourth Proportional to 12,491,712.30, 18,737,568.45 and 9,653,861.10

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Solution

The fourth proportional to 12,491,712.30, 18,737,568.45 and 9,653,861.10 is: 14,480,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,712.30 : 18,737,568.45 = 9,653,861.10 : x
  2. Step 2: Convert to fraction form
    12,491,712.30/18,737,568.45 = 9,653,861.10/x
  3. Step 3: Cross multiply
    12,491,712.30x = 18,737,568.45 × 9,653,861.10
  4. Step 4: Simplify right side
    12,491,712.30x = 180,889,883,168,042.28
  5. Step 5: Solve for x
    x = 180,889,883,168,042.28/12,491,712.30
  6. Step 6: Final answer
    x = 14,480,791.65

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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.