Home / 20,146,505.10-30,219,757.65-17,028,717.90

Finding the Fourth Proportional to 20,146,505.10, 30,219,757.65 and 17,028,717.90

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Solution

The fourth proportional to 20,146,505.10, 30,219,757.65 and 17,028,717.90 is: 25,543,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,505.10 : 30,219,757.65 = 17,028,717.90 : x
  2. Step 2: Convert to fraction form
    20,146,505.10/30,219,757.65 = 17,028,717.90/x
  3. Step 3: Cross multiply
    20,146,505.10x = 30,219,757.65 × 17,028,717.90
  4. Step 4: Simplify right side
    20,146,505.10x = 514,603,728,028,216.88
  5. Step 5: Solve for x
    x = 514,603,728,028,216.88/20,146,505.10
  6. Step 6: Final answer
    x = 25,543,076.85

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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.