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Finding the Fourth Proportional to 11,809,814.80, 17,714,722.20 and 8,954,467.60

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Solution

The fourth proportional to 11,809,814.80, 17,714,722.20 and 8,954,467.60 is: 13,431,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809,814.80 : 17,714,722.20 = 8,954,467.60 : x
  2. Step 2: Convert to fraction form
    11,809,814.80/17,714,722.20 = 8,954,467.60/x
  3. Step 3: Cross multiply
    11,809,814.80x = 17,714,722.20 × 8,954,467.60
  4. Step 4: Simplify right side
    11,809,814.80x = 158,625,905,982,900.72
  5. Step 5: Solve for x
    x = 158,625,905,982,900.72/11,809,814.80
  6. Step 6: Final answer
    x = 13,431,701.40

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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.