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Finding the Fourth Proportional to 8,668,864.80, 12,998,631.60 and 3,614,464.80

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Solution

The fourth proportional to 8,668,864.80, 12,998,631.60 and 3,614,464.80 is: 5,419,751.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668,864.80 : 12,998,631.60 = 3,614,464.80 : x
  2. Step 2: Convert to fraction form
    8,668,864.80/12,998,631.60 = 3,614,464.80/x
  3. Step 3: Cross multiply
    8,668,864.80x = 12,998,631.60 × 3,614,464.80
  4. Step 4: Simplify right side
    8,668,864.80x = 46,983,096,366,367.68
  5. Step 5: Solve for x
    x = 46,983,096,366,367.68/8,668,864.80
  6. Step 6: Final answer
    x = 5,419,751.89

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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.