Home / 131,328,902.70-196,993,354.05-76,909,344.30

Finding the Fourth Proportional to 131,328,902.70, 196,993,354.05 and 76,909,344.30

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Solution

The fourth proportional to 131,328,902.70, 196,993,354.05 and 76,909,344.30 is: 115,364,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,328,902.70 : 196,993,354.05 = 76,909,344.30 : x
  2. Step 2: Convert to fraction form
    131,328,902.70/196,993,354.05 = 76,909,344.30/x
  3. Step 3: Cross multiply
    131,328,902.70x = 196,993,354.05 × 76,909,344.30
  4. Step 4: Simplify right side
    131,328,902.70x = 15,150,629,691,443,250
  5. Step 5: Solve for x
    x = 15,150,629,691,443,250/131,328,902.70
  6. Step 6: Final answer
    x = 115,364,016.45

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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.