Home / 198,693,338.40-298,040,007.60-53,149,363.20

Finding the Fourth Proportional to 198,693,338.40, 298,040,007.60 and 53,149,363.20

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Solution

The fourth proportional to 198,693,338.40, 298,040,007.60 and 53,149,363.20 is: 79,724,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,693,338.40 : 298,040,007.60 = 53,149,363.20 : x
  2. Step 2: Convert to fraction form
    198,693,338.40/298,040,007.60 = 53,149,363.20/x
  3. Step 3: Cross multiply
    198,693,338.40x = 298,040,007.60 × 53,149,363.20
  4. Step 4: Simplify right side
    198,693,338.40x = 15,840,636,612,063,162
  5. Step 5: Solve for x
    x = 15,840,636,612,063,162/198,693,338.40
  6. Step 6: Final answer
    x = 79,724,044.80

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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.