Home / 27,855,255.15-38,413,537.74-17,921,999.57

Finding the Fourth Proportional to 27,855,255.15, 38,413,537.74 and 17,921,999.57

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Solution

The fourth proportional to 27,855,255.15, 38,413,537.74 and 17,921,999.57 is: 24,715,171.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855,255.15 : 38,413,537.74 = 17,921,999.57 : x
  2. Step 2: Convert to fraction form
    27,855,255.15/38,413,537.74 = 17,921,999.57/x
  3. Step 3: Cross multiply
    27,855,255.15x = 38,413,537.74 × 17,921,999.57
  4. Step 4: Simplify right side
    27,855,255.15x = 688,447,406,576,781.12
  5. Step 5: Solve for x
    x = 688,447,406,576,781.12/27,855,255.15
  6. Step 6: Final answer
    x = 24,715,171.44

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1.5x scale

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.