Home / 396,276,091.20-594,414,136.80-212,610,081.60

Finding the Fourth Proportional to 396,276,091.20, 594,414,136.80 and 212,610,081.60

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Solution

The fourth proportional to 396,276,091.20, 594,414,136.80 and 212,610,081.60 is: 318,915,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,276,091.20 : 594,414,136.80 = 212,610,081.60 : x
  2. Step 2: Convert to fraction form
    396,276,091.20/594,414,136.80 = 212,610,081.60/x
  3. Step 3: Cross multiply
    396,276,091.20x = 594,414,136.80 × 212,610,081.60
  4. Step 4: Simplify right side
    396,276,091.20x = 126,378,438,129,241,552
  5. Step 5: Solve for x
    x = 126,378,438,129,241,552/396,276,091.20
  6. Step 6: Final answer
    x = 318,915,122.40

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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.