Home / 198,781,885,906.97-298,214,711,169.78-64,465,902,817.53

Finding the Fourth Proportional to 198,781,885,906.97, 298,214,711,169.78 and 64,465,902,817.53

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Solution

The fourth proportional to 198,781,885,906.97, 298,214,711,169.78 and 64,465,902,817.53 is: 96,712,436,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,781,885,906.97 : 298,214,711,169.78 = 64,465,902,817.53 : x
  2. Step 2: Convert to fraction form
    198,781,885,906.97/298,214,711,169.78 = 64,465,902,817.53/x
  3. Step 3: Cross multiply
    198,781,885,906.97x = 298,214,711,169.78 × 64,465,902,817.53
  4. Step 4: Simplify right side
    198,781,885,906.97x = 19,224,680,589,028,816,322,560
  5. Step 5: Solve for x
    x = 19,224,680,589,028,816,322,560/198,781,885,906.97
  6. Step 6: Final answer
    x = 96,712,436,856.68

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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.