Home / 279,780,540.31-419,671,597.79-107,310,221.11

Finding the Fourth Proportional to 279,780,540.31, 419,671,597.79 and 107,310,221.11

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Solution

The fourth proportional to 279,780,540.31, 419,671,597.79 and 107,310,221.11 is: 160,965,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,780,540.31 : 419,671,597.79 = 107,310,221.11 : x
  2. Step 2: Convert to fraction form
    279,780,540.31/419,671,597.79 = 107,310,221.11/x
  3. Step 3: Cross multiply
    279,780,540.31x = 419,671,597.79 × 107,310,221.11
  4. Step 4: Simplify right side
    279,780,540.31x = 45,035,051,951,895,336
  5. Step 5: Solve for x
    x = 45,035,051,951,895,336/279,780,540.31
  6. Step 6: Final answer
    x = 160,965,633.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.