Home / 17,218,778.54-23,761,938.65-9,378,321.48

Finding the Fourth Proportional to 17,218,778.54, 23,761,938.65 and 9,378,321.48

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Solution

The fourth proportional to 17,218,778.54, 23,761,938.65 and 9,378,321.48 is: 12,942,096.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218,778.54 : 23,761,938.65 = 9,378,321.48 : x
  2. Step 2: Convert to fraction form
    17,218,778.54/23,761,938.65 = 9,378,321.48/x
  3. Step 3: Cross multiply
    17,218,778.54x = 23,761,938.65 × 9,378,321.48
  4. Step 4: Simplify right side
    17,218,778.54x = 222,847,099,600,845.59
  5. Step 5: Solve for x
    x = 222,847,099,600,845.59/17,218,778.54
  6. Step 6: Final answer
    x = 12,942,096.86

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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.