Home / 2,113,104.40-3,171,989.40-1,315,286.80

Finding the Fourth Proportional to 2,113,104.40, 3,171,989.40 and 1,315,286.80

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Solution

The fourth proportional to 2,113,104.40, 3,171,989.40 and 1,315,286.80 is: 1,974,382.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,104.40 : 3,171,989.40 = 1,315,286.80 : x
  2. Step 2: Convert to fraction form
    2,113,104.40/3,171,989.40 = 1,315,286.80/x
  3. Step 3: Cross multiply
    2,113,104.40x = 3,171,989.40 × 1,315,286.80
  4. Step 4: Simplify right side
    2,113,104.40x = 4,172,075,787,559.92
  5. Step 5: Solve for x
    x = 4,172,075,787,559.92/2,113,104.40
  6. Step 6: Final answer
    x = 1,974,382.23

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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.