Home / 2,100,821.20-3,151,231.80-2,054,165.20

Finding the Fourth Proportional to 2,100,821.20, 3,151,231.80 and 2,054,165.20

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Solution

The fourth proportional to 2,100,821.20, 3,151,231.80 and 2,054,165.20 is: 3,081,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,821.20 : 3,151,231.80 = 2,054,165.20 : x
  2. Step 2: Convert to fraction form
    2,100,821.20/3,151,231.80 = 2,054,165.20/x
  3. Step 3: Cross multiply
    2,100,821.20x = 3,151,231.80 × 2,054,165.20
  4. Step 4: Simplify right side
    2,100,821.20x = 6,473,150,700,693.36
  5. Step 5: Solve for x
    x = 6,473,150,700,693.36/2,100,821.20
  6. Step 6: Final answer
    x = 3,081,247.80

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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.