Home / 20,612,855.71-30,920,905.17-5,466,787.21

Finding the Fourth Proportional to 20,612,855.71, 30,920,905.17 and 5,466,787.21

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Solution

The fourth proportional to 20,612,855.71, 30,920,905.17 and 5,466,787.21 is: 8,200,610.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,855.71 : 30,920,905.17 = 5,466,787.21 : x
  2. Step 2: Convert to fraction form
    20,612,855.71/30,920,905.17 = 5,466,787.21/x
  3. Step 3: Cross multiply
    20,612,855.71x = 30,920,905.17 × 5,466,787.21
  4. Step 4: Simplify right side
    20,612,855.71x = 169,038,008,904,978.88
  5. Step 5: Solve for x
    x = 169,038,008,904,978.88/20,612,855.71
  6. Step 6: Final answer
    x = 8,200,610.88

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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.