Home / 2,126,819.66-3,187,379.81-1,990,616.94

Finding the Fourth Proportional to 2,126,819.66, 3,187,379.81 and 1,990,616.94

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Solution

The fourth proportional to 2,126,819.66, 3,187,379.81 and 1,990,616.94 is: 2,983,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,819.66 : 3,187,379.81 = 1,990,616.94 : x
  2. Step 2: Convert to fraction form
    2,126,819.66/3,187,379.81 = 1,990,616.94/x
  3. Step 3: Cross multiply
    2,126,819.66x = 3,187,379.81 × 1,990,616.94
  4. Step 4: Simplify right side
    2,126,819.66x = 6,344,852,234,046.90
  5. Step 5: Solve for x
    x = 6,344,852,234,046.90/2,126,819.66
  6. Step 6: Final answer
    x = 2,983,258.23

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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.