Home / 5,215,963.12-7,197,921.86-2,892,480.69

Finding the Fourth Proportional to 5,215,963.12, 7,197,921.86 and 2,892,480.69

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Solution

The fourth proportional to 5,215,963.12, 7,197,921.86 and 2,892,480.69 is: 3,991,563.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,963.12 : 7,197,921.86 = 2,892,480.69 : x
  2. Step 2: Convert to fraction form
    5,215,963.12/7,197,921.86 = 2,892,480.69/x
  3. Step 3: Cross multiply
    5,215,963.12x = 7,197,921.86 × 2,892,480.69
  4. Step 4: Simplify right side
    5,215,963.12x = 20,819,849,995,410.09
  5. Step 5: Solve for x
    x = 20,819,849,995,410.09/5,215,963.12
  6. Step 6: Final answer
    x = 3,991,563.88

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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.