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Finding the Fourth Proportional to 12,269,325.60, 18,403,815.60 and 5,537,728.80

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Solution

The fourth proportional to 12,269,325.60, 18,403,815.60 and 5,537,728.80 is: 8,306,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269,325.60 : 18,403,815.60 = 5,537,728.80 : x
  2. Step 2: Convert to fraction form
    12,269,325.60/18,403,815.60 = 5,537,728.80/x
  3. Step 3: Cross multiply
    12,269,325.60x = 18,403,815.60 × 5,537,728.80
  4. Step 4: Simplify right side
    12,269,325.60x = 101,915,339,678,009.28
  5. Step 5: Solve for x
    x = 101,915,339,678,009.28/12,269,325.60
  6. Step 6: Final answer
    x = 8,306,515.21

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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.