Home / 2,185,771.40-3,278,657.10-1,388,609.90

Finding the Fourth Proportional to 2,185,771.40, 3,278,657.10 and 1,388,609.90

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Solution

The fourth proportional to 2,185,771.40, 3,278,657.10 and 1,388,609.90 is: 2,082,914.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,771.40 : 3,278,657.10 = 1,388,609.90 : x
  2. Step 2: Convert to fraction form
    2,185,771.40/3,278,657.10 = 1,388,609.90/x
  3. Step 3: Cross multiply
    2,185,771.40x = 3,278,657.10 × 1,388,609.90
  4. Step 4: Simplify right side
    2,185,771.40x = 4,552,775,707,765.29
  5. Step 5: Solve for x
    x = 4,552,775,707,765.29/2,185,771.40
  6. Step 6: Final answer
    x = 2,082,914.85

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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.