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Finding the Fourth Proportional to 13,494,595.60, 20,241,893.40 and 12,192,893.20

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Solution

The fourth proportional to 13,494,595.60, 20,241,893.40 and 12,192,893.20 is: 18,289,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494,595.60 : 20,241,893.40 = 12,192,893.20 : x
  2. Step 2: Convert to fraction form
    13,494,595.60/20,241,893.40 = 12,192,893.20/x
  3. Step 3: Cross multiply
    13,494,595.60x = 20,241,893.40 × 12,192,893.20
  4. Step 4: Simplify right side
    13,494,595.60x = 246,807,244,391,984.84
  5. Step 5: Solve for x
    x = 246,807,244,391,984.84/13,494,595.60
  6. Step 6: Final answer
    x = 18,289,339.80

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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.