Home / 1,993,163.20-2,989,744.80-1,981,353.40

Finding the Fourth Proportional to 1,993,163.20, 2,989,744.80 and 1,981,353.40

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Solution

The fourth proportional to 1,993,163.20, 2,989,744.80 and 1,981,353.40 is: 2,972,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,163.20 : 2,989,744.80 = 1,981,353.40 : x
  2. Step 2: Convert to fraction form
    1,993,163.20/2,989,744.80 = 1,981,353.40/x
  3. Step 3: Cross multiply
    1,993,163.20x = 2,989,744.80 × 1,981,353.40
  4. Step 4: Simplify right side
    1,993,163.20x = 5,923,741,024,612.32
  5. Step 5: Solve for x
    x = 5,923,741,024,612.32/1,993,163.20
  6. Step 6: Final answer
    x = 2,972,030.10

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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.