Home / 120,975,976,730.80-166,945,998,610.46-66,043,149,758.09

Finding the Fourth Proportional to 120,975,976,730.80, 166,945,998,610.46 and 66,043,149,758.09

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Solution

The fourth proportional to 120,975,976,730.80, 166,945,998,610.46 and 66,043,149,758.09 is: 91,139,083,028.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,975,976,730.80 : 166,945,998,610.46 = 66,043,149,758.09 : x
  2. Step 2: Convert to fraction form
    120,975,976,730.80/166,945,998,610.46 = 66,043,149,758.09/x
  3. Step 3: Cross multiply
    120,975,976,730.80x = 166,945,998,610.46 × 66,043,149,758.09
  4. Step 4: Simplify right side
    120,975,976,730.80x = 11,025,639,587,744,493,600,768
  5. Step 5: Solve for x
    x = 11,025,639,587,744,493,600,768/120,975,976,730.80
  6. Step 6: Final answer
    x = 91,139,083,028.68

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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.