Home / 2,106,713.91-2,907,347.70-1,188,975.11

Finding the Fourth Proportional to 2,106,713.91, 2,907,347.70 and 1,188,975.11

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Solution

The fourth proportional to 2,106,713.91, 2,907,347.70 and 1,188,975.11 is: 1,640,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,713.91 : 2,907,347.70 = 1,188,975.11 : x
  2. Step 2: Convert to fraction form
    2,106,713.91/2,907,347.70 = 1,188,975.11/x
  3. Step 3: Cross multiply
    2,106,713.91x = 2,907,347.70 × 1,188,975.11
  4. Step 4: Simplify right side
    2,106,713.91x = 3,456,764,040,713.97
  5. Step 5: Solve for x
    x = 3,456,764,040,713.97/2,106,713.91
  6. Step 6: Final answer
    x = 1,640,832.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.