Home / 3,138,439.80-4,707,659.70-2,221,704.08

Finding the Fourth Proportional to 3,138,439.80, 4,707,659.70 and 2,221,704.08

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Solution

The fourth proportional to 3,138,439.80, 4,707,659.70 and 2,221,704.08 is: 3,332,556.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,439.80 : 4,707,659.70 = 2,221,704.08 : x
  2. Step 2: Convert to fraction form
    3,138,439.80/4,707,659.70 = 2,221,704.08/x
  3. Step 3: Cross multiply
    3,138,439.80x = 4,707,659.70 × 2,221,704.08
  4. Step 4: Simplify right side
    3,138,439.80x = 10,459,026,762,741.58
  5. Step 5: Solve for x
    x = 10,459,026,762,741.58/3,138,439.80
  6. Step 6: Final answer
    x = 3,332,556.12

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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.