Home / 158,969,076.78-238,282,241.97-76,914,586.38

Finding the Fourth Proportional to 158,969,076.78, 238,282,241.97 and 76,914,586.38

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Solution

The fourth proportional to 158,969,076.78, 238,282,241.97 and 76,914,586.38 is: 115,288,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,969,076.78 : 238,282,241.97 = 76,914,586.38 : x
  2. Step 2: Convert to fraction form
    158,969,076.78/238,282,241.97 = 76,914,586.38/x
  3. Step 3: Cross multiply
    158,969,076.78x = 238,282,241.97 × 76,914,586.38
  4. Step 4: Simplify right side
    158,969,076.78x = 18,327,380,082,821,624
  5. Step 5: Solve for x
    x = 18,327,380,082,821,624/158,969,076.78
  6. Step 6: Final answer
    x = 115,288,963.45

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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.