Home / 2,119,782.80-3,179,674.20-1,979,814.80

Finding the Fourth Proportional to 2,119,782.80, 3,179,674.20 and 1,979,814.80

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Solution

The fourth proportional to 2,119,782.80, 3,179,674.20 and 1,979,814.80 is: 2,969,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,782.80 : 3,179,674.20 = 1,979,814.80 : x
  2. Step 2: Convert to fraction form
    2,119,782.80/3,179,674.20 = 1,979,814.80/x
  3. Step 3: Cross multiply
    2,119,782.80x = 3,179,674.20 × 1,979,814.80
  4. Step 4: Simplify right side
    2,119,782.80x = 6,295,166,040,338.16
  5. Step 5: Solve for x
    x = 6,295,166,040,338.16/2,119,782.80
  6. Step 6: Final answer
    x = 2,969,722.20

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Double scale
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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.