Home / 12,627,343.59-18,941,691.57-3,990,787.05

Finding the Fourth Proportional to 12,627,343.59, 18,941,691.57 and 3,990,787.05

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Solution

The fourth proportional to 12,627,343.59, 18,941,691.57 and 3,990,787.05 is: 5,986,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627,343.59 : 18,941,691.57 = 3,990,787.05 : x
  2. Step 2: Convert to fraction form
    12,627,343.59/18,941,691.57 = 3,990,787.05/x
  3. Step 3: Cross multiply
    12,627,343.59x = 18,941,691.57 × 3,990,787.05
  4. Step 4: Simplify right side
    12,627,343.59x = 75,592,257,422,650.17
  5. Step 5: Solve for x
    x = 75,592,257,422,650.17/12,627,343.59
  6. Step 6: Final answer
    x = 5,986,394.28

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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.