Home / 40,256,431.03-55,552,408.09-21,921,314.23

Finding the Fourth Proportional to 40,256,431.03, 55,552,408.09 and 21,921,314.23

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Solution

The fourth proportional to 40,256,431.03, 55,552,408.09 and 21,921,314.23 is: 30,250,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,256,431.03 : 55,552,408.09 = 21,921,314.23 : x
  2. Step 2: Convert to fraction form
    40,256,431.03/55,552,408.09 = 21,921,314.23/x
  3. Step 3: Cross multiply
    40,256,431.03x = 55,552,408.09 × 21,921,314.23
  4. Step 4: Simplify right side
    40,256,431.03x = 1,217,781,793,974,084.25
  5. Step 5: Solve for x
    x = 1,217,781,793,974,084.25/40,256,431.03
  6. Step 6: Final answer
    x = 30,250,614.94

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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.