Home / 198,781,885,917.72-298,214,711,185.92-64,465,902,828.28

Finding the Fourth Proportional to 198,781,885,917.72, 298,214,711,185.92 and 64,465,902,828.28

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Solution

The fourth proportional to 198,781,885,917.72, 298,214,711,185.92 and 64,465,902,828.28 is: 96,712,436,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,781,885,917.72 : 298,214,711,185.92 = 64,465,902,828.28 : x
  2. Step 2: Convert to fraction form
    198,781,885,917.72/298,214,711,185.92 = 64,465,902,828.28/x
  3. Step 3: Cross multiply
    198,781,885,917.72x = 298,214,711,185.92 × 64,465,902,828.28
  4. Step 4: Simplify right side
    198,781,885,917.72x = 19,224,680,593,275,100,332,032
  5. Step 5: Solve for x
    x = 19,224,680,593,275,100,332,032/198,781,885,917.72
  6. Step 6: Final answer
    x = 96,712,436,872.81

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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.