Home / 107,981,930.40-161,987,103.60-39,872,464.80

Finding the Fourth Proportional to 107,981,930.40, 161,987,103.60 and 39,872,464.80

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Solution

The fourth proportional to 107,981,930.40, 161,987,103.60 and 39,872,464.80 is: 59,813,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,981,930.40 : 161,987,103.60 = 39,872,464.80 : x
  2. Step 2: Convert to fraction form
    107,981,930.40/161,987,103.60 = 39,872,464.80/x
  3. Step 3: Cross multiply
    107,981,930.40x = 161,987,103.60 × 39,872,464.80
  4. Step 4: Simplify right side
    107,981,930.40x = 6,458,825,086,344,953
  5. Step 5: Solve for x
    x = 6,458,825,086,344,953/107,981,930.40
  6. Step 6: Final answer
    x = 59,813,943.52

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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.