Home / 215,511,342.30-323,267,013.45-198,883,143.90

Finding the Fourth Proportional to 215,511,342.30, 323,267,013.45 and 198,883,143.90

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Solution

The fourth proportional to 215,511,342.30, 323,267,013.45 and 198,883,143.90 is: 298,324,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,511,342.30 : 323,267,013.45 = 198,883,143.90 : x
  2. Step 2: Convert to fraction form
    215,511,342.30/323,267,013.45 = 198,883,143.90/x
  3. Step 3: Cross multiply
    215,511,342.30x = 323,267,013.45 × 198,883,143.90
  4. Step 4: Simplify right side
    215,511,342.30x = 64,292,359,954,099,584
  5. Step 5: Solve for x
    x = 64,292,359,954,099,584/215,511,342.30
  6. Step 6: Final answer
    x = 298,324,715.85

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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.