Home / 81,297,126.75-121,969,645.79-32,749,999.23

Finding the Fourth Proportional to 81,297,126.75, 121,969,645.79 and 32,749,999.23

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Solution

The fourth proportional to 81,297,126.75, 121,969,645.79 and 32,749,999.23 is: 49,134,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,297,126.75 : 121,969,645.79 = 32,749,999.23 : x
  2. Step 2: Convert to fraction form
    81,297,126.75/121,969,645.79 = 32,749,999.23/x
  3. Step 3: Cross multiply
    81,297,126.75x = 121,969,645.79 × 32,749,999.23
  4. Step 4: Simplify right side
    81,297,126.75x = 3,994,505,805,705,873
  5. Step 5: Solve for x
    x = 3,994,505,805,705,873/81,297,126.75
  6. Step 6: Final answer
    x = 49,134,649.22

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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.