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Finding the Fourth Proportional to 16,991,604.80, 25,445,416.80 and 11,280,910.40

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Solution

The fourth proportional to 16,991,604.80, 25,445,416.80 and 11,280,910.40 is: 16,893,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991,604.80 : 25,445,416.80 = 11,280,910.40 : x
  2. Step 2: Convert to fraction form
    16,991,604.80/25,445,416.80 = 11,280,910.40/x
  3. Step 3: Cross multiply
    16,991,604.80x = 25,445,416.80 × 11,280,910.40
  4. Step 4: Simplify right side
    16,991,604.80x = 287,047,467,011,454.75
  5. Step 5: Solve for x
    x = 287,047,467,011,454.75/16,991,604.80
  6. Step 6: Final answer
    x = 16,893,487.72

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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.