Home / 420,152,092.20-630,228,138.30-267,474,997.80

Finding the Fourth Proportional to 420,152,092.20, 630,228,138.30 and 267,474,997.80

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Solution

The fourth proportional to 420,152,092.20, 630,228,138.30 and 267,474,997.80 is: 401,212,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,152,092.20 : 630,228,138.30 = 267,474,997.80 : x
  2. Step 2: Convert to fraction form
    420,152,092.20/630,228,138.30 = 267,474,997.80/x
  3. Step 3: Cross multiply
    420,152,092.20x = 630,228,138.30 × 267,474,997.80
  4. Step 4: Simplify right side
    420,152,092.20x = 168,570,269,905,290,592
  5. Step 5: Solve for x
    x = 168,570,269,905,290,592/420,152,092.20
  6. Step 6: Final answer
    x = 401,212,496.70

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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.