Home / 81,661,040.40-122,633,278.20-43,397,288.40

Finding the Fourth Proportional to 81,661,040.40, 122,633,278.20 and 43,397,288.40

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Solution

The fourth proportional to 81,661,040.40, 122,633,278.20 and 43,397,288.40 is: 65,171,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,661,040.40 : 122,633,278.20 = 43,397,288.40 : x
  2. Step 2: Convert to fraction form
    81,661,040.40/122,633,278.20 = 43,397,288.40/x
  3. Step 3: Cross multiply
    81,661,040.40x = 122,633,278.20 × 43,397,288.40
  4. Step 4: Simplify right side
    81,661,040.40x = 5,321,951,741,482,833
  5. Step 5: Solve for x
    x = 5,321,951,741,482,833/81,661,040.40
  6. Step 6: Final answer
    x = 65,171,245.86

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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.