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Finding the Fourth Proportional to 69,336,902.80, 104,005,354.20 and 52,204,819.60

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Solution

The fourth proportional to 69,336,902.80, 104,005,354.20 and 52,204,819.60 is: 78,307,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,336,902.80 : 104,005,354.20 = 52,204,819.60 : x
  2. Step 2: Convert to fraction form
    69,336,902.80/104,005,354.20 = 52,204,819.60/x
  3. Step 3: Cross multiply
    69,336,902.80x = 104,005,354.20 × 52,204,819.60
  4. Step 4: Simplify right side
    69,336,902.80x = 5,429,580,753,445,103
  5. Step 5: Solve for x
    x = 5,429,580,753,445,103/69,336,902.80
  6. Step 6: Final answer
    x = 78,307,229.40

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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.