Home / 12,278,351.64-18,414,385.92-3,640,432.32

Finding the Fourth Proportional to 12,278,351.64, 18,414,385.92 and 3,640,432.32

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Solution

The fourth proportional to 12,278,351.64, 18,414,385.92 and 3,640,432.32 is: 5,459,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,351.64 : 18,414,385.92 = 3,640,432.32 : x
  2. Step 2: Convert to fraction form
    12,278,351.64/18,414,385.92 = 3,640,432.32/x
  3. Step 3: Cross multiply
    12,278,351.64x = 18,414,385.92 × 3,640,432.32
  4. Step 4: Simplify right side
    12,278,351.64x = 67,036,325,656,120.94
  5. Step 5: Solve for x
    x = 67,036,325,656,120.94/12,278,351.64
  6. Step 6: Final answer
    x = 5,459,717.04

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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.