Home / 12,059,390.40-18,085,198.20-3,970,440.12

Finding the Fourth Proportional to 12,059,390.40, 18,085,198.20 and 3,970,440.12

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Solution

The fourth proportional to 12,059,390.40, 18,085,198.20 and 3,970,440.12 is: 5,954,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,059,390.40 : 18,085,198.20 = 3,970,440.12 : x
  2. Step 2: Convert to fraction form
    12,059,390.40/18,085,198.20 = 3,970,440.12/x
  3. Step 3: Cross multiply
    12,059,390.40x = 18,085,198.20 × 3,970,440.12
  4. Step 4: Simplify right side
    12,059,390.40x = 71,806,196,511,431.78
  5. Step 5: Solve for x
    x = 71,806,196,511,431.78/12,059,390.40
  6. Step 6: Final answer
    x = 5,954,380.29

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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.