Home / 203,542,997.60-305,443,631.20-86,959,231.94

Finding the Fourth Proportional to 203,542,997.60, 305,443,631.20 and 86,959,231.94

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Solution

The fourth proportional to 203,542,997.60, 305,443,631.20 and 86,959,231.94 is: 130,494,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,542,997.60 : 305,443,631.20 = 86,959,231.94 : x
  2. Step 2: Convert to fraction form
    203,542,997.60/305,443,631.20 = 86,959,231.94/x
  3. Step 3: Cross multiply
    203,542,997.60x = 305,443,631.20 × 86,959,231.94
  4. Step 4: Simplify right side
    203,542,997.60x = 26,561,143,568,154,608
  5. Step 5: Solve for x
    x = 26,561,143,568,154,608/203,542,997.60
  6. Step 6: Final answer
    x = 130,494,017.88

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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.