Home / 231,003,881.59-318,785,356.60-138,188,301.43

Finding the Fourth Proportional to 231,003,881.59, 318,785,356.60 and 138,188,301.43

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Solution

The fourth proportional to 231,003,881.59, 318,785,356.60 and 138,188,301.43 is: 190,699,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,003,881.59 : 318,785,356.60 = 138,188,301.43 : x
  2. Step 2: Convert to fraction form
    231,003,881.59/318,785,356.60 = 138,188,301.43/x
  3. Step 3: Cross multiply
    231,003,881.59x = 318,785,356.60 × 138,188,301.43
  4. Step 4: Simplify right side
    231,003,881.59x = 44,052,406,949,310,848
  5. Step 5: Solve for x
    x = 44,052,406,949,310,848/231,003,881.59
  6. Step 6: Final answer
    x = 190,699,855.98

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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.