Home / 5,131,879.38-7,082,215.83-2,840,040.81

Finding the Fourth Proportional to 5,131,879.38, 7,082,215.83 and 2,840,040.81

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Solution

The fourth proportional to 5,131,879.38, 7,082,215.83 and 2,840,040.81 is: 3,919,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131,879.38 : 7,082,215.83 = 2,840,040.81 : x
  2. Step 2: Convert to fraction form
    5,131,879.38/7,082,215.83 = 2,840,040.81/x
  3. Step 3: Cross multiply
    5,131,879.38x = 7,082,215.83 × 2,840,040.81
  4. Step 4: Simplify right side
    5,131,879.38x = 20,113,781,982,428.02
  5. Step 5: Solve for x
    x = 20,113,781,982,428.02/5,131,879.38
  6. Step 6: Final answer
    x = 3,919,379.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.