Home / 408,766,289.58-612,922,582.53-135,988,149.42

Finding the Fourth Proportional to 408,766,289.58, 612,922,582.53 and 135,988,149.42

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Solution

The fourth proportional to 408,766,289.58, 612,922,582.53 and 135,988,149.42 is: 203,906,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,766,289.58 : 612,922,582.53 = 135,988,149.42 : x
  2. Step 2: Convert to fraction form
    408,766,289.58/612,922,582.53 = 135,988,149.42/x
  3. Step 3: Cross multiply
    408,766,289.58x = 612,922,582.53 × 135,988,149.42
  4. Step 4: Simplify right side
    408,766,289.58x = 83,350,207,735,981,904
  5. Step 5: Solve for x
    x = 83,350,207,735,981,904/408,766,289.58
  6. Step 6: Final answer
    x = 203,906,755.18

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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.