Home / 2,220,757.12-3,069,809.76-1,981,411.84

Finding the Fourth Proportional to 2,220,757.12, 3,069,809.76 and 1,981,411.84

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Solution

The fourth proportional to 2,220,757.12, 3,069,809.76 and 1,981,411.84 is: 2,738,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220,757.12 : 3,069,809.76 = 1,981,411.84 : x
  2. Step 2: Convert to fraction form
    2,220,757.12/3,069,809.76 = 1,981,411.84/x
  3. Step 3: Cross multiply
    2,220,757.12x = 3,069,809.76 × 1,981,411.84
  4. Step 4: Simplify right side
    2,220,757.12x = 6,082,557,405,011.56
  5. Step 5: Solve for x
    x = 6,082,557,405,011.56/2,220,757.12
  6. Step 6: Final answer
    x = 2,738,956.62

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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.