Home / 3,121,213.50-4,669,131.09

Finding the Third Proportional to 3,121,213.50 and 4,669,131.09

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Solution

The third proportional to 3,121,213.50 and 4,669,131.09 is: 6,984,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,213.50 : 4,669,131.09 = 4,669,131.09 : x
  2. Step 2: Convert to fraction form
    3,121,213.50/4,669,131.09 = 4,669,131.09/x
  3. Step 3: Cross multiply
    3,121,213.50x = 4,669,131.09 × 4,669,131.09
  4. Step 4: Simplify right side
    3,121,213.50x = 21,800,785,170,623.07
  5. Step 5: Solve for x
    x = 21,800,785,170,623.07/3,121,213.50
  6. Step 6: Final answer
    x = 6,984,714.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.