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Finding the Fourth Proportional to 8,382,152.80, 12,554,566.80 and 7,262,408.80

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Solution

The fourth proportional to 8,382,152.80, 12,554,566.80 and 7,262,408.80 is: 10,877,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,382,152.80 : 12,554,566.80 = 7,262,408.80 : x
  2. Step 2: Convert to fraction form
    8,382,152.80/12,554,566.80 = 7,262,408.80/x
  3. Step 3: Cross multiply
    8,382,152.80x = 12,554,566.80 × 7,262,408.80
  4. Step 4: Simplify right side
    8,382,152.80x = 91,176,396,408,507.84
  5. Step 5: Solve for x
    x = 91,176,396,408,507.84/8,382,152.80
  6. Step 6: Final answer
    x = 10,877,443.85

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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.