Home / 392,040,998.40-588,061,497.60-372,909,122.40

Finding the Fourth Proportional to 392,040,998.40, 588,061,497.60 and 372,909,122.40

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Solution

The fourth proportional to 392,040,998.40, 588,061,497.60 and 372,909,122.40 is: 559,363,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,040,998.40 : 588,061,497.60 = 372,909,122.40 : x
  2. Step 2: Convert to fraction form
    392,040,998.40/588,061,497.60 = 372,909,122.40/x
  3. Step 3: Cross multiply
    392,040,998.40x = 588,061,497.60 × 372,909,122.40
  4. Step 4: Simplify right side
    392,040,998.40x = 219,293,496,987,245,696
  5. Step 5: Solve for x
    x = 219,293,496,987,245,696/392,040,998.40
  6. Step 6: Final answer
    x = 559,363,683.60

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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.