Home / 129,587,286.40-194,383,233.60-38,711,996.80

Finding the Fourth Proportional to 129,587,286.40, 194,383,233.60 and 38,711,996.80

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Solution

The fourth proportional to 129,587,286.40, 194,383,233.60 and 38,711,996.80 is: 58,068,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,587,286.40 : 194,383,233.60 = 38,711,996.80 : x
  2. Step 2: Convert to fraction form
    129,587,286.40/194,383,233.60 = 38,711,996.80/x
  3. Step 3: Cross multiply
    129,587,286.40x = 194,383,233.60 × 38,711,996.80
  4. Step 4: Simplify right side
    129,587,286.40x = 7,524,963,117,096,852
  5. Step 5: Solve for x
    x = 7,524,963,117,096,852/129,587,286.40
  6. Step 6: Final answer
    x = 58,068,683.48

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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.