Home / 170,387,905.80-255,057,657.85-111,172,781.73

Finding the Fourth Proportional to 170,387,905.80, 255,057,657.85 and 111,172,781.73

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Solution

The fourth proportional to 170,387,905.80, 255,057,657.85 and 111,172,781.73 is: 166,417,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,387,905.80 : 255,057,657.85 = 111,172,781.73 : x
  2. Step 2: Convert to fraction form
    170,387,905.80/255,057,657.85 = 111,172,781.73/x
  3. Step 3: Cross multiply
    170,387,905.80x = 255,057,657.85 × 111,172,781.73
  4. Step 4: Simplify right side
    170,387,905.80x = 28,355,469,324,723,072
  5. Step 5: Solve for x
    x = 28,355,469,324,723,072/170,387,905.80
  6. Step 6: Final answer
    x = 166,417,147.93

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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.