Home / 126,978,989.75-190,500,481.80-36,102,578.75

Finding the Fourth Proportional to 126,978,989.75, 190,500,481.80 and 36,102,578.75

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Solution

The fourth proportional to 126,978,989.75, 190,500,481.80 and 36,102,578.75 is: 54,162,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,978,989.75 : 190,500,481.80 = 36,102,578.75 : x
  2. Step 2: Convert to fraction form
    126,978,989.75/190,500,481.80 = 36,102,578.75/x
  3. Step 3: Cross multiply
    126,978,989.75x = 190,500,481.80 × 36,102,578.75
  4. Step 4: Simplify right side
    126,978,989.75x = 6,877,558,645,144,939
  5. Step 5: Solve for x
    x = 6,877,558,645,144,939/126,978,989.75
  6. Step 6: Final answer
    x = 54,162,965.53

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.