Home / 78,493,098.20-117,744,896.10-26,676,944.60

Finding the Fourth Proportional to 78,493,098.20, 117,744,896.10 and 26,676,944.60

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Solution

The fourth proportional to 78,493,098.20, 117,744,896.10 and 26,676,944.60 is: 40,017,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,493,098.20 : 117,744,896.10 = 26,676,944.60 : x
  2. Step 2: Convert to fraction form
    78,493,098.20/117,744,896.10 = 26,676,944.60/x
  3. Step 3: Cross multiply
    78,493,098.20x = 117,744,896.10 × 26,676,944.60
  4. Step 4: Simplify right side
    78,493,098.20x = 3,141,074,070,192,456
  5. Step 5: Solve for x
    x = 3,141,074,070,192,456/78,493,098.20
  6. Step 6: Final answer
    x = 40,017,200.78

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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.