Home / 2,178,105.80-3,267,158.70-2,080,128.20

Finding the Fourth Proportional to 2,178,105.80, 3,267,158.70 and 2,080,128.20

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Solution

The fourth proportional to 2,178,105.80, 3,267,158.70 and 2,080,128.20 is: 3,120,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,105.80 : 3,267,158.70 = 2,080,128.20 : x
  2. Step 2: Convert to fraction form
    2,178,105.80/3,267,158.70 = 2,080,128.20/x
  3. Step 3: Cross multiply
    2,178,105.80x = 3,267,158.70 × 2,080,128.20
  4. Step 4: Simplify right side
    2,178,105.80x = 6,796,108,945,745.34
  5. Step 5: Solve for x
    x = 6,796,108,945,745.34/2,178,105.80
  6. Step 6: Final answer
    x = 3,120,192.30

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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.