Home / 231,390,262.56-319,295,304.84-138,568,383.84

Finding the Fourth Proportional to 231,390,262.56, 319,295,304.84 and 138,568,383.84

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Solution

The fourth proportional to 231,390,262.56, 319,295,304.84 and 138,568,383.84 is: 191,210,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,390,262.56 : 319,295,304.84 = 138,568,383.84 : x
  2. Step 2: Convert to fraction form
    231,390,262.56/319,295,304.84 = 138,568,383.84/x
  3. Step 3: Cross multiply
    231,390,262.56x = 319,295,304.84 × 138,568,383.84
  4. Step 4: Simplify right side
    231,390,262.56x = 44,244,234,359,378,928
  5. Step 5: Solve for x
    x = 44,244,234,359,378,928/231,390,262.56
  6. Step 6: Final answer
    x = 191,210,441.92

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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.