Home / 399,177,003.40-598,765,505.10-340,726,366.60

Finding the Fourth Proportional to 399,177,003.40, 598,765,505.10 and 340,726,366.60

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Solution

The fourth proportional to 399,177,003.40, 598,765,505.10 and 340,726,366.60 is: 511,089,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,177,003.40 : 598,765,505.10 = 340,726,366.60 : x
  2. Step 2: Convert to fraction form
    399,177,003.40/598,765,505.10 = 340,726,366.60/x
  3. Step 3: Cross multiply
    399,177,003.40x = 598,765,505.10 × 340,726,366.60
  4. Step 4: Simplify right side
    399,177,003.40x = 204,015,194,998,136,800
  5. Step 5: Solve for x
    x = 204,015,194,998,136,800/399,177,003.40
  6. Step 6: Final answer
    x = 511,089,549.90

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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.