Home / 13,479,892.10-20,219,838.15-7,740,329.30

Finding the Fourth Proportional to 13,479,892.10, 20,219,838.15 and 7,740,329.30

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Solution

The fourth proportional to 13,479,892.10, 20,219,838.15 and 7,740,329.30 is: 11,610,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,892.10 : 20,219,838.15 = 7,740,329.30 : x
  2. Step 2: Convert to fraction form
    13,479,892.10/20,219,838.15 = 7,740,329.30/x
  3. Step 3: Cross multiply
    13,479,892.10x = 20,219,838.15 × 7,740,329.30
  4. Step 4: Simplify right side
    13,479,892.10x = 156,508,205,673,702.78
  5. Step 5: Solve for x
    x = 156,508,205,673,702.78/13,479,892.10
  6. Step 6: Final answer
    x = 11,610,493.95

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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.