Home / 3,179,086.32-4,387,254.24-1,821,221.76

Finding the Fourth Proportional to 3,179,086.32, 4,387,254.24 and 1,821,221.76

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Solution

The fourth proportional to 3,179,086.32, 4,387,254.24 and 1,821,221.76 is: 2,513,351.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,086.32 : 4,387,254.24 = 1,821,221.76 : x
  2. Step 2: Convert to fraction form
    3,179,086.32/4,387,254.24 = 1,821,221.76/x
  3. Step 3: Cross multiply
    3,179,086.32x = 4,387,254.24 × 1,821,221.76
  4. Step 4: Simplify right side
    3,179,086.32x = 7,990,162,888,540.26
  5. Step 5: Solve for x
    x = 7,990,162,888,540.26/3,179,086.32
  6. Step 6: Final answer
    x = 2,513,351.98

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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.