Home / 2,218,512.30-3,327,768.45-2,131,421.10

Finding the Fourth Proportional to 2,218,512.30, 3,327,768.45 and 2,131,421.10

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Solution

The fourth proportional to 2,218,512.30, 3,327,768.45 and 2,131,421.10 is: 3,197,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218,512.30 : 3,327,768.45 = 2,131,421.10 : x
  2. Step 2: Convert to fraction form
    2,218,512.30/3,327,768.45 = 2,131,421.10/x
  3. Step 3: Cross multiply
    2,218,512.30x = 3,327,768.45 × 2,131,421.10
  4. Step 4: Simplify right side
    2,218,512.30x = 7,092,875,890,244.30
  5. Step 5: Solve for x
    x = 7,092,875,890,244.30/2,218,512.30
  6. Step 6: Final answer
    x = 3,197,131.65

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Double scale
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Similar ratio
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1.5x scale

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.