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Finding the Fourth Proportional to 8,323,230.80, 12,470,849.40 and 5,481,880.40

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Solution

The fourth proportional to 8,323,230.80, 12,470,849.40 and 5,481,880.40 is: 8,213,601.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323,230.80 : 12,470,849.40 = 5,481,880.40 : x
  2. Step 2: Convert to fraction form
    8,323,230.80/12,470,849.40 = 5,481,880.40/x
  3. Step 3: Cross multiply
    8,323,230.80x = 12,470,849.40 × 5,481,880.40
  4. Step 4: Simplify right side
    8,323,230.80x = 68,363,704,897,211.77
  5. Step 5: Solve for x
    x = 68,363,704,897,211.77/8,323,230.80
  6. Step 6: Final answer
    x = 8,213,601.97

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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.