Home / 5,131,118.70-7,081,695-2,955,238.38

Finding the Fourth Proportional to 5,131,118.70, 7,081,695 and 2,955,238.38

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Solution

The fourth proportional to 5,131,118.70, 7,081,695 and 2,955,238.38 is: 4,078,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131,118.70 : 7,081,695 = 2,955,238.38 : x
  2. Step 2: Convert to fraction form
    5,131,118.70/7,081,695 = 2,955,238.38/x
  3. Step 3: Cross multiply
    5,131,118.70x = 7,081,695 × 2,955,238.38
  4. Step 4: Simplify right side
    5,131,118.70x = 20,928,096,859,454.10
  5. Step 5: Solve for x
    x = 20,928,096,859,454.10/5,131,118.70
  6. Step 6: Final answer
    x = 4,078,661.61

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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.