Home / 13,206,085.69-18,207,640.94-9,438,644.16

Finding the Fourth Proportional to 13,206,085.69, 18,207,640.94 and 9,438,644.16

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Solution

The fourth proportional to 13,206,085.69, 18,207,640.94 and 9,438,644.16 is: 13,013,352.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,085.69 : 18,207,640.94 = 9,438,644.16 : x
  2. Step 2: Convert to fraction form
    13,206,085.69/18,207,640.94 = 9,438,644.16/x
  3. Step 3: Cross multiply
    13,206,085.69x = 18,207,640.94 × 9,438,644.16
  4. Step 4: Simplify right side
    13,206,085.69x = 171,855,443,725,452
  5. Step 5: Solve for x
    x = 171,855,443,725,452/13,206,085.69
  6. Step 6: Final answer
    x = 13,013,352.16

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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.