Home / 12,083,537.70-18,135,220.95-11,989,059.30

Finding the Fourth Proportional to 12,083,537.70, 18,135,220.95 and 11,989,059.30

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Solution

The fourth proportional to 12,083,537.70, 18,135,220.95 and 11,989,059.30 is: 17,993,425.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083,537.70 : 18,135,220.95 = 11,989,059.30 : x
  2. Step 2: Convert to fraction form
    12,083,537.70/18,135,220.95 = 11,989,059.30/x
  3. Step 3: Cross multiply
    12,083,537.70x = 18,135,220.95 × 11,989,059.30
  4. Step 4: Simplify right side
    12,083,537.70x = 217,424,239,388,152.34
  5. Step 5: Solve for x
    x = 217,424,239,388,152.34/12,083,537.70
  6. Step 6: Final answer
    x = 17,993,425.83

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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.