Home / 2,166,636.38-2,989,921.41-1,199,745.90

Finding the Fourth Proportional to 2,166,636.38, 2,989,921.41 and 1,199,745.90

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Solution

The fourth proportional to 2,166,636.38, 2,989,921.41 and 1,199,745.90 is: 1,655,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,636.38 : 2,989,921.41 = 1,199,745.90 : x
  2. Step 2: Convert to fraction form
    2,166,636.38/2,989,921.41 = 1,199,745.90/x
  3. Step 3: Cross multiply
    2,166,636.38x = 2,989,921.41 × 1,199,745.90
  4. Step 4: Simplify right side
    2,166,636.38x = 3,587,145,952,969.72
  5. Step 5: Solve for x
    x = 3,587,145,952,969.72/2,166,636.38
  6. Step 6: Final answer
    x = 1,655,628.97

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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.