Home / 129,794,164.60-194,691,246.90-78,733,838.20

Finding the Fourth Proportional to 129,794,164.60, 194,691,246.90 and 78,733,838.20

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Solution

The fourth proportional to 129,794,164.60, 194,691,246.90 and 78,733,838.20 is: 118,100,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794,164.60 : 194,691,246.90 = 78,733,838.20 : x
  2. Step 2: Convert to fraction form
    129,794,164.60/194,691,246.90 = 78,733,838.20/x
  3. Step 3: Cross multiply
    129,794,164.60x = 194,691,246.90 × 78,733,838.20
  4. Step 4: Simplify right side
    129,794,164.60x = 15,328,789,132,380,852
  5. Step 5: Solve for x
    x = 15,328,789,132,380,852/129,794,164.60
  6. Step 6: Final answer
    x = 118,100,757.30

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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.