Home / 2,137,205.88-3,206,989.26-1,191,109.68

Finding the Fourth Proportional to 2,137,205.88, 3,206,989.26 and 1,191,109.68

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Solution

The fourth proportional to 2,137,205.88, 3,206,989.26 and 1,191,109.68 is: 1,787,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137,205.88 : 3,206,989.26 = 1,191,109.68 : x
  2. Step 2: Convert to fraction form
    2,137,205.88/3,206,989.26 = 1,191,109.68/x
  3. Step 3: Cross multiply
    2,137,205.88x = 3,206,989.26 × 1,191,109.68
  4. Step 4: Simplify right side
    2,137,205.88x = 3,819,875,951,242.04
  5. Step 5: Solve for x
    x = 3,819,875,951,242.04/2,137,205.88
  6. Step 6: Final answer
    x = 1,787,322.40

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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.