Home / 68,901,512.38-103,372,446.54-20,380,658.27

Finding the Fourth Proportional to 68,901,512.38, 103,372,446.54 and 20,380,658.27

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Solution

The fourth proportional to 68,901,512.38, 103,372,446.54 and 20,380,658.27 is: 30,576,955.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,901,512.38 : 103,372,446.54 = 20,380,658.27 : x
  2. Step 2: Convert to fraction form
    68,901,512.38/103,372,446.54 = 20,380,658.27/x
  3. Step 3: Cross multiply
    68,901,512.38x = 103,372,446.54 × 20,380,658.27
  4. Step 4: Simplify right side
    68,901,512.38x = 2,106,798,507,025,149.25
  5. Step 5: Solve for x
    x = 2,106,798,507,025,149.25/68,901,512.38
  6. Step 6: Final answer
    x = 30,576,955.92

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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.