Home / 3,131,207.22-4,321,066.59-1,907,512.68

Finding the Fourth Proportional to 3,131,207.22, 4,321,066.59 and 1,907,512.68

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Solution

The fourth proportional to 3,131,207.22, 4,321,066.59 and 1,907,512.68 is: 2,632,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,207.22 : 4,321,066.59 = 1,907,512.68 : x
  2. Step 2: Convert to fraction form
    3,131,207.22/4,321,066.59 = 1,907,512.68/x
  3. Step 3: Cross multiply
    3,131,207.22x = 4,321,066.59 × 1,907,512.68
  4. Step 4: Simplify right side
    3,131,207.22x = 8,242,489,311,549.36
  5. Step 5: Solve for x
    x = 8,242,489,311,549.36/3,131,207.22
  6. Step 6: Final answer
    x = 2,632,367.88

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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.