Home / 172,305,976.32-258,534,824.31-90,405,105.60

Finding the Fourth Proportional to 172,305,976.32, 258,534,824.31 and 90,405,105.60

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Solution

The fourth proportional to 172,305,976.32, 258,534,824.31 and 90,405,105.60 is: 135,647,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,305,976.32 : 258,534,824.31 = 90,405,105.60 : x
  2. Step 2: Convert to fraction form
    172,305,976.32/258,534,824.31 = 90,405,105.60/x
  3. Step 3: Cross multiply
    172,305,976.32x = 258,534,824.31 × 90,405,105.60
  4. Step 4: Simplify right side
    172,305,976.32x = 23,372,868,093,022,996
  5. Step 5: Solve for x
    x = 23,372,868,093,022,996/172,305,976.32
  6. Step 6: Final answer
    x = 135,647,460.36

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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.