Home / 2,106,020.15-2,906,058.04-1,188,195.78

Finding the Fourth Proportional to 2,106,020.15, 2,906,058.04 and 1,188,195.78

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Solution

The fourth proportional to 2,106,020.15, 2,906,058.04 and 1,188,195.78 is: 1,639,569.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,020.15 : 2,906,058.04 = 1,188,195.78 : x
  2. Step 2: Convert to fraction form
    2,106,020.15/2,906,058.04 = 1,188,195.78/x
  3. Step 3: Cross multiply
    2,106,020.15x = 2,906,058.04 × 1,188,195.78
  4. Step 4: Simplify right side
    2,106,020.15x = 3,452,965,899,563.07
  5. Step 5: Solve for x
    x = 3,452,965,899,563.07/2,106,020.15
  6. Step 6: Final answer
    x = 1,639,569.26

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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.