Home / 100,493,491,291.44-138,681,018,761.60-55,383,218,611.96

Finding the Fourth Proportional to 100,493,491,291.44, 138,681,018,761.60 and 55,383,218,611.96

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Solution

The fourth proportional to 100,493,491,291.44, 138,681,018,761.60 and 55,383,218,611.96 is: 76,428,842,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,493,491,291.44 : 138,681,018,761.60 = 55,383,218,611.96 : x
  2. Step 2: Convert to fraction form
    100,493,491,291.44/138,681,018,761.60 = 55,383,218,611.96/x
  3. Step 3: Cross multiply
    100,493,491,291.44x = 138,681,018,761.60 × 55,383,218,611.96
  4. Step 4: Simplify right side
    100,493,491,291.44x = 7,680,601,179,403,019,354,112
  5. Step 5: Solve for x
    x = 7,680,601,179,403,019,354,112/100,493,491,291.44
  6. Step 6: Final answer
    x = 76,428,842,114.05

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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.