Home / 12,379,836.93-18,568,654.59-4,292,631.69

Finding the Fourth Proportional to 12,379,836.93, 18,568,654.59 and 4,292,631.69

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Solution

The fourth proportional to 12,379,836.93, 18,568,654.59 and 4,292,631.69 is: 6,438,565.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,836.93 : 18,568,654.59 = 4,292,631.69 : x
  2. Step 2: Convert to fraction form
    12,379,836.93/18,568,654.59 = 4,292,631.69/x
  3. Step 3: Cross multiply
    12,379,836.93x = 18,568,654.59 × 4,292,631.69
  4. Step 4: Simplify right side
    12,379,836.93x = 79,708,395,133,697.97
  5. Step 5: Solve for x
    x = 79,708,395,133,697.97/12,379,836.93
  6. Step 6: Final answer
    x = 6,438,565.84

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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.