Home / 398,760,769.20-598,222,024.20-226,320,193.20

Finding the Fourth Proportional to 398,760,769.20, 598,222,024.20 and 226,320,193.20

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Solution

The fourth proportional to 398,760,769.20, 598,222,024.20 and 226,320,193.20 is: 339,526,188.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,760,769.20 : 598,222,024.20 = 226,320,193.20 : x
  2. Step 2: Convert to fraction form
    398,760,769.20/598,222,024.20 = 226,320,193.20/x
  3. Step 3: Cross multiply
    398,760,769.20x = 598,222,024.20 × 226,320,193.20
  4. Step 4: Simplify right side
    398,760,769.20x = 135,389,724,093,439,072
  5. Step 5: Solve for x
    x = 135,389,724,093,439,072/398,760,769.20
  6. Step 6: Final answer
    x = 339,526,188.51

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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.