Home / 394,594,711.20-591,892,066.80-378,470,397.60

Finding the Fourth Proportional to 394,594,711.20, 591,892,066.80 and 378,470,397.60

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Solution

The fourth proportional to 394,594,711.20, 591,892,066.80 and 378,470,397.60 is: 567,705,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,594,711.20 : 591,892,066.80 = 378,470,397.60 : x
  2. Step 2: Convert to fraction form
    394,594,711.20/591,892,066.80 = 378,470,397.60/x
  3. Step 3: Cross multiply
    394,594,711.20x = 591,892,066.80 × 378,470,397.60
  4. Step 4: Simplify right side
    394,594,711.20x = 224,013,625,858,081,760
  5. Step 5: Solve for x
    x = 224,013,625,858,081,760/394,594,711.20
  6. Step 6: Final answer
    x = 567,705,596.40

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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.