Home / 258,819,687.40-388,229,531.10-200,998,906.60

Finding the Fourth Proportional to 258,819,687.40, 388,229,531.10 and 200,998,906.60

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Solution

The fourth proportional to 258,819,687.40, 388,229,531.10 and 200,998,906.60 is: 301,498,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,819,687.40 : 388,229,531.10 = 200,998,906.60 : x
  2. Step 2: Convert to fraction form
    258,819,687.40/388,229,531.10 = 200,998,906.60/x
  3. Step 3: Cross multiply
    258,819,687.40x = 388,229,531.10 × 200,998,906.60
  4. Step 4: Simplify right side
    258,819,687.40x = 78,033,711,260,930,704
  5. Step 5: Solve for x
    x = 78,033,711,260,930,704/258,819,687.40
  6. Step 6: Final answer
    x = 301,498,359.90

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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.