Home / 3,945,156.86-5,918,072.62-1,386,149.38

Finding the Fourth Proportional to 3,945,156.86, 5,918,072.62 and 1,386,149.38

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Solution

The fourth proportional to 3,945,156.86, 5,918,072.62 and 1,386,149.38 is: 2,079,342.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945,156.86 : 5,918,072.62 = 1,386,149.38 : x
  2. Step 2: Convert to fraction form
    3,945,156.86/5,918,072.62 = 1,386,149.38/x
  3. Step 3: Cross multiply
    3,945,156.86x = 5,918,072.62 × 1,386,149.38
  4. Step 4: Simplify right side
    3,945,156.86x = 8,203,332,693,007.98
  5. Step 5: Solve for x
    x = 8,203,332,693,007.98/3,945,156.86
  6. Step 6: Final answer
    x = 2,079,342.59

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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.