Home / 312,628,294.56-431,144,781.84-195,164,453.28

Finding the Fourth Proportional to 312,628,294.56, 431,144,781.84 and 195,164,453.28

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Solution

The fourth proportional to 312,628,294.56, 431,144,781.84 and 195,164,453.28 is: 269,150,736.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,628,294.56 : 431,144,781.84 = 195,164,453.28 : x
  2. Step 2: Convert to fraction form
    312,628,294.56/431,144,781.84 = 195,164,453.28/x
  3. Step 3: Cross multiply
    312,628,294.56x = 431,144,781.84 × 195,164,453.28
  4. Step 4: Simplify right side
    312,628,294.56x = 84,144,135,632,328,464
  5. Step 5: Solve for x
    x = 84,144,135,632,328,464/312,628,294.56
  6. Step 6: Final answer
    x = 269,150,736.18

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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.