Home / 440,103,670.20-660,155,505.30-285,135,474.60

Finding the Fourth Proportional to 440,103,670.20, 660,155,505.30 and 285,135,474.60

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Solution

The fourth proportional to 440,103,670.20, 660,155,505.30 and 285,135,474.60 is: 427,703,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,103,670.20 : 660,155,505.30 = 285,135,474.60 : x
  2. Step 2: Convert to fraction form
    440,103,670.20/660,155,505.30 = 285,135,474.60/x
  3. Step 3: Cross multiply
    440,103,670.20x = 660,155,505.30 × 285,135,474.60
  4. Step 4: Simplify right side
    440,103,670.20x = 188,233,753,313,518,304
  5. Step 5: Solve for x
    x = 188,233,753,313,518,304/440,103,670.20
  6. Step 6: Final answer
    x = 427,703,211.90

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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.