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Finding the Fourth Proportional to 269,414,375.80, 404,121,563.70 and 243,586,343.20

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Solution

The fourth proportional to 269,414,375.80, 404,121,563.70 and 243,586,343.20 is: 365,379,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,414,375.80 : 404,121,563.70 = 243,586,343.20 : x
  2. Step 2: Convert to fraction form
    269,414,375.80/404,121,563.70 = 243,586,343.20/x
  3. Step 3: Cross multiply
    269,414,375.80x = 404,121,563.70 × 243,586,343.20
  4. Step 4: Simplify right side
    269,414,375.80x = 98,438,493,909,948,848
  5. Step 5: Solve for x
    x = 98,438,493,909,948,848/269,414,375.80
  6. Step 6: Final answer
    x = 365,379,514.80

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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.