Home / 81,129,422.33-111,958,701.23-43,959,673.86

Finding the Fourth Proportional to 81,129,422.33, 111,958,701.23 and 43,959,673.86

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Solution

The fourth proportional to 81,129,422.33, 111,958,701.23 and 43,959,673.86 is: 60,664,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,129,422.33 : 111,958,701.23 = 43,959,673.86 : x
  2. Step 2: Convert to fraction form
    81,129,422.33/111,958,701.23 = 43,959,673.86/x
  3. Step 3: Cross multiply
    81,129,422.33x = 111,958,701.23 × 43,959,673.86
  4. Step 4: Simplify right side
    81,129,422.33x = 4,921,667,991,550,035
  5. Step 5: Solve for x
    x = 4,921,667,991,550,035/81,129,422.33
  6. Step 6: Final answer
    x = 60,664,403.25

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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.