Home / 120,722,270,471.25-166,591,882,883.46-65,788,276,982.37

Finding the Fourth Proportional to 120,722,270,471.25, 166,591,882,883.46 and 65,788,276,982.37

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Solution

The fourth proportional to 120,722,270,471.25, 166,591,882,883.46 and 65,788,276,982.37 is: 90,785,179,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,722,270,471.25 : 166,591,882,883.46 = 65,788,276,982.37 : x
  2. Step 2: Convert to fraction form
    120,722,270,471.25/166,591,882,883.46 = 65,788,276,982.37/x
  3. Step 3: Cross multiply
    120,722,270,471.25x = 166,591,882,883.46 × 65,788,276,982.37
  4. Step 4: Simplify right side
    120,722,270,471.25x = 10,959,792,934,151,610,433,536
  5. Step 5: Solve for x
    x = 10,959,792,934,151,610,433,536/120,722,270,471.25
  6. Step 6: Final answer
    x = 90,785,179,001.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.