Home / 107,982,016.40-161,987,232.60-39,872,550.80

Finding the Fourth Proportional to 107,982,016.40, 161,987,232.60 and 39,872,550.80

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Solution

The fourth proportional to 107,982,016.40, 161,987,232.60 and 39,872,550.80 is: 59,814,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,982,016.40 : 161,987,232.60 = 39,872,550.80 : x
  2. Step 2: Convert to fraction form
    107,982,016.40/161,987,232.60 = 39,872,550.80/x
  3. Step 3: Cross multiply
    107,982,016.40x = 161,987,232.60 × 39,872,550.80
  4. Step 4: Simplify right side
    107,982,016.40x = 6,458,844,160,794,915
  5. Step 5: Solve for x
    x = 6,458,844,160,794,915/107,982,016.40
  6. Step 6: Final answer
    x = 59,814,072.53

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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.