Home / 306,406,003.25-422,970,755.72-205,992,676.55

Finding the Fourth Proportional to 306,406,003.25, 422,970,755.72 and 205,992,676.55

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Solution

The fourth proportional to 306,406,003.25, 422,970,755.72 and 205,992,676.55 is: 284,357,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,406,003.25 : 422,970,755.72 = 205,992,676.55 : x
  2. Step 2: Convert to fraction form
    306,406,003.25/422,970,755.72 = 205,992,676.55/x
  3. Step 3: Cross multiply
    306,406,003.25x = 422,970,755.72 × 205,992,676.55
  4. Step 4: Simplify right side
    306,406,003.25x = 87,128,878,073,139,040
  5. Step 5: Solve for x
    x = 87,128,878,073,139,040/306,406,003.25
  6. Step 6: Final answer
    x = 284,357,607.71

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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.