Home / 13,731,046.42-18,949,729.80-7,619,474.92

Finding the Fourth Proportional to 13,731,046.42, 18,949,729.80 and 7,619,474.92

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Solution

The fourth proportional to 13,731,046.42, 18,949,729.80 and 7,619,474.92 is: 10,515,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731,046.42 : 18,949,729.80 = 7,619,474.92 : x
  2. Step 2: Convert to fraction form
    13,731,046.42/18,949,729.80 = 7,619,474.92/x
  3. Step 3: Cross multiply
    13,731,046.42x = 18,949,729.80 × 7,619,474.92
  4. Step 4: Simplify right side
    13,731,046.42x = 144,386,990,951,876.62
  5. Step 5: Solve for x
    x = 144,386,990,951,876.62/13,731,046.42
  6. Step 6: Final answer
    x = 10,515,366.89

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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.