Home / 1,993,205.70-2,989,808.55-1,981,395.90

Finding the Fourth Proportional to 1,993,205.70, 2,989,808.55 and 1,981,395.90

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Solution

The fourth proportional to 1,993,205.70, 2,989,808.55 and 1,981,395.90 is: 2,972,093.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,205.70 : 2,989,808.55 = 1,981,395.90 : x
  2. Step 2: Convert to fraction form
    1,993,205.70/2,989,808.55 = 1,981,395.90/x
  3. Step 3: Cross multiply
    1,993,205.70x = 2,989,808.55 × 1,981,395.90
  4. Step 4: Simplify right side
    1,993,205.70x = 5,923,994,402,754.94
  5. Step 5: Solve for x
    x = 5,923,994,402,754.94/1,993,205.70
  6. Step 6: Final answer
    x = 2,972,093.85

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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.