Home / 2,101,456.20-3,147,518.70-1,821,520.20

Finding the Fourth Proportional to 2,101,456.20, 3,147,518.70 and 1,821,520.20

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Solution

The fourth proportional to 2,101,456.20, 3,147,518.70 and 1,821,520.20 is: 2,728,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,456.20 : 3,147,518.70 = 1,821,520.20 : x
  2. Step 2: Convert to fraction form
    2,101,456.20/3,147,518.70 = 1,821,520.20/x
  3. Step 3: Cross multiply
    2,101,456.20x = 3,147,518.70 × 1,821,520.20
  4. Step 4: Simplify right side
    2,101,456.20x = 5,733,268,891,927.74
  5. Step 5: Solve for x
    x = 5,733,268,891,927.74/2,101,456.20
  6. Step 6: Final answer
    x = 2,728,236.21

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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.