Home / 396,290,427.20-594,435,640.80-137,419,611.20

Finding the Fourth Proportional to 396,290,427.20, 594,435,640.80 and 137,419,611.20

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Solution

The fourth proportional to 396,290,427.20, 594,435,640.80 and 137,419,611.20 is: 206,129,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,290,427.20 : 594,435,640.80 = 137,419,611.20 : x
  2. Step 2: Convert to fraction form
    396,290,427.20/594,435,640.80 = 137,419,611.20/x
  3. Step 3: Cross multiply
    396,290,427.20x = 594,435,640.80 × 137,419,611.20
  4. Step 4: Simplify right side
    396,290,427.20x = 81,687,114,642,158,848
  5. Step 5: Solve for x
    x = 81,687,114,642,158,848/396,290,427.20
  6. Step 6: Final answer
    x = 206,129,416.80

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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.