Home / 81,747,182,976.32-122,620,259,920.80-43,991,542,965.44

Finding the Fourth Proportional to 81,747,182,976.32, 122,620,259,920.80 and 43,991,542,965.44

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Solution

The fourth proportional to 81,747,182,976.32, 122,620,259,920.80 and 43,991,542,965.44 is: 65,987,037,550.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,747,182,976.32 : 122,620,259,920.80 = 43,991,542,965.44 : x
  2. Step 2: Convert to fraction form
    81,747,182,976.32/122,620,259,920.80 = 43,991,542,965.44/x
  3. Step 3: Cross multiply
    81,747,182,976.32x = 122,620,259,920.80 × 43,991,542,965.44
  4. Step 4: Simplify right side
    81,747,182,976.32x = 5,394,254,432,739,293,921,280
  5. Step 5: Solve for x
    x = 5,394,254,432,739,293,921,280/81,747,182,976.32
  6. Step 6: Final answer
    x = 65,987,037,550.91

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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.