Home / 3,131,208.72-4,321,068.66-1,907,514.18

Finding the Fourth Proportional to 3,131,208.72, 4,321,068.66 and 1,907,514.18

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Solution

The fourth proportional to 3,131,208.72, 4,321,068.66 and 1,907,514.18 is: 2,632,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,208.72 : 4,321,068.66 = 1,907,514.18 : x
  2. Step 2: Convert to fraction form
    3,131,208.72/4,321,068.66 = 1,907,514.18/x
  3. Step 3: Cross multiply
    3,131,208.72x = 4,321,068.66 × 1,907,514.18
  4. Step 4: Simplify right side
    3,131,208.72x = 8,242,499,741,703.60
  5. Step 5: Solve for x
    x = 8,242,499,741,703.60/3,131,208.72
  6. Step 6: Final answer
    x = 2,632,369.95

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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.