Home / 5,168,081-7,131,951.78-2,876,782.98

Finding the Fourth Proportional to 5,168,081, 7,131,951.78 and 2,876,782.98

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Solution

The fourth proportional to 5,168,081, 7,131,951.78 and 2,876,782.98 is: 3,969,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168,081 : 7,131,951.78 = 2,876,782.98 : x
  2. Step 2: Convert to fraction form
    5,168,081/7,131,951.78 = 2,876,782.98/x
  3. Step 3: Cross multiply
    5,168,081x = 7,131,951.78 × 2,876,782.98
  4. Step 4: Simplify right side
    5,168,081x = 20,517,077,494,884.70
  5. Step 5: Solve for x
    x = 20,517,077,494,884.70/5,168,081
  6. Step 6: Final answer
    x = 3,969,960.51

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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.