Home / 20,883,261.90-31,324,892.85-15,214,557.90

Finding the Fourth Proportional to 20,883,261.90, 31,324,892.85 and 15,214,557.90

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Solution

The fourth proportional to 20,883,261.90, 31,324,892.85 and 15,214,557.90 is: 22,821,836.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,261.90 : 31,324,892.85 = 15,214,557.90 : x
  2. Step 2: Convert to fraction form
    20,883,261.90/31,324,892.85 = 15,214,557.90/x
  3. Step 3: Cross multiply
    20,883,261.90x = 31,324,892.85 × 15,214,557.90
  4. Step 4: Simplify right side
    20,883,261.90x = 476,594,395,977,621.06
  5. Step 5: Solve for x
    x = 476,594,395,977,621.06/20,883,261.90
  6. Step 6: Final answer
    x = 22,821,836.85

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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.