Home / 12,083,804.70-18,135,621.45-11,989,326.30

Finding the Fourth Proportional to 12,083,804.70, 18,135,621.45 and 11,989,326.30

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Solution

The fourth proportional to 12,083,804.70, 18,135,621.45 and 11,989,326.30 is: 17,993,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083,804.70 : 18,135,621.45 = 11,989,326.30 : x
  2. Step 2: Convert to fraction form
    12,083,804.70/18,135,621.45 = 11,989,326.30/x
  3. Step 3: Cross multiply
    12,083,804.70x = 18,135,621.45 × 11,989,326.30
  4. Step 4: Simplify right side
    12,083,804.70x = 217,433,883,217,329.12
  5. Step 5: Solve for x
    x = 217,433,883,217,329.12/12,083,804.70
  6. Step 6: Final answer
    x = 17,993,826.33

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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.