Home / 8,863,818.80-12,229,987.11-5,379,078.65

Finding the Fourth Proportional to 8,863,818.80, 12,229,987.11 and 5,379,078.65

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Solution

The fourth proportional to 8,863,818.80, 12,229,987.11 and 5,379,078.65 is: 7,421,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863,818.80 : 12,229,987.11 = 5,379,078.65 : x
  2. Step 2: Convert to fraction form
    8,863,818.80/12,229,987.11 = 5,379,078.65/x
  3. Step 3: Cross multiply
    8,863,818.80x = 12,229,987.11 × 5,379,078.65
  4. Step 4: Simplify right side
    8,863,818.80x = 65,786,062,553,176.20
  5. Step 5: Solve for x
    x = 65,786,062,553,176.20/8,863,818.80
  6. Step 6: Final answer
    x = 7,421,864.55

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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.