Home / 68,858,642.85-103,263,824.12-20,323,546.53

Finding the Fourth Proportional to 68,858,642.85, 103,263,824.12 and 20,323,546.53

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Solution

The fourth proportional to 68,858,642.85, 103,263,824.12 and 20,323,546.53 is: 30,478,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,858,642.85 : 103,263,824.12 = 20,323,546.53 : x
  2. Step 2: Convert to fraction form
    68,858,642.85/103,263,824.12 = 20,323,546.53/x
  3. Step 3: Cross multiply
    68,858,642.85x = 103,263,824.12 × 20,323,546.53
  4. Step 4: Simplify right side
    68,858,642.85x = 2,098,687,134,266,938.50
  5. Step 5: Solve for x
    x = 2,098,687,134,266,938.50/68,858,642.85
  6. Step 6: Final answer
    x = 30,478,194.86

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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.