Home / 440,123,489.80-660,185,234.70-310,983,326.80

Finding the Fourth Proportional to 440,123,489.80, 660,185,234.70 and 310,983,326.80

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Solution

The fourth proportional to 440,123,489.80, 660,185,234.70 and 310,983,326.80 is: 466,474,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,123,489.80 : 660,185,234.70 = 310,983,326.80 : x
  2. Step 2: Convert to fraction form
    440,123,489.80/660,185,234.70 = 310,983,326.80/x
  3. Step 3: Cross multiply
    440,123,489.80x = 660,185,234.70 × 310,983,326.80
  4. Step 4: Simplify right side
    440,123,489.80x = 205,306,600,591,244,832
  5. Step 5: Solve for x
    x = 205,306,600,591,244,832/440,123,489.80
  6. Step 6: Final answer
    x = 466,474,990.20

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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.