Home / 81,661,037.40-122,633,273.70-43,397,285.40

Finding the Fourth Proportional to 81,661,037.40, 122,633,273.70 and 43,397,285.40

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Solution

The fourth proportional to 81,661,037.40, 122,633,273.70 and 43,397,285.40 is: 65,171,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,661,037.40 : 122,633,273.70 = 43,397,285.40 : x
  2. Step 2: Convert to fraction form
    81,661,037.40/122,633,273.70 = 43,397,285.40/x
  3. Step 3: Cross multiply
    81,661,037.40x = 122,633,273.70 × 43,397,285.40
  4. Step 4: Simplify right side
    81,661,037.40x = 5,321,951,178,295,214
  5. Step 5: Solve for x
    x = 5,321,951,178,295,214/81,661,037.40
  6. Step 6: Final answer
    x = 65,171,241.36

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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.