Home / 1,986,414.20-2,985,842.10-1,949,089.40

Finding the Fourth Proportional to 1,986,414.20, 2,985,842.10 and 1,949,089.40

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Solution

The fourth proportional to 1,986,414.20, 2,985,842.10 and 1,949,089.40 is: 2,929,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,414.20 : 2,985,842.10 = 1,949,089.40 : x
  2. Step 2: Convert to fraction form
    1,986,414.20/2,985,842.10 = 1,949,089.40/x
  3. Step 3: Cross multiply
    1,986,414.20x = 2,985,842.10 × 1,949,089.40
  4. Step 4: Simplify right side
    1,986,414.20x = 5,819,673,187,183.74
  5. Step 5: Solve for x
    x = 5,819,673,187,183.74/1,986,414.20
  6. Step 6: Final answer
    x = 2,929,738.01

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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.