Home / 400,512,523.89-552,568,962.87-251,844,958.25

Finding the Fourth Proportional to 400,512,523.89, 552,568,962.87 and 251,844,958.25

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Solution

The fourth proportional to 400,512,523.89, 552,568,962.87 and 251,844,958.25 is: 347,459,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,512,523.89 : 552,568,962.87 = 251,844,958.25 : x
  2. Step 2: Convert to fraction form
    400,512,523.89/552,568,962.87 = 251,844,958.25/x
  3. Step 3: Cross multiply
    400,512,523.89x = 552,568,962.87 × 251,844,958.25
  4. Step 4: Simplify right side
    400,512,523.89x = 139,161,707,381,478,112
  5. Step 5: Solve for x
    x = 139,161,707,381,478,112/400,512,523.89
  6. Step 6: Final answer
    x = 347,459,065.77

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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.