Home / 2,158,990.18-2,979,387.21-1,192,099.66

Finding the Fourth Proportional to 2,158,990.18, 2,979,387.21 and 1,192,099.66

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Solution

The fourth proportional to 2,158,990.18, 2,979,387.21 and 1,192,099.66 is: 1,645,086.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,990.18 : 2,979,387.21 = 1,192,099.66 : x
  2. Step 2: Convert to fraction form
    2,158,990.18/2,979,387.21 = 1,192,099.66/x
  3. Step 3: Cross multiply
    2,158,990.18x = 2,979,387.21 × 1,192,099.66
  4. Step 4: Simplify right side
    2,158,990.18x = 3,551,726,480,049.35
  5. Step 5: Solve for x
    x = 3,551,726,480,049.35/2,158,990.18
  6. Step 6: Final answer
    x = 1,645,086.91

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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.