Home / 21,285,845.60-31,932,915.60-8,504,175.20

Finding the Fourth Proportional to 21,285,845.60, 31,932,915.60 and 8,504,175.20

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Solution

The fourth proportional to 21,285,845.60, 31,932,915.60 and 8,504,175.20 is: 12,757,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,845.60 : 31,932,915.60 = 8,504,175.20 : x
  2. Step 2: Convert to fraction form
    21,285,845.60/31,932,915.60 = 8,504,175.20/x
  3. Step 3: Cross multiply
    21,285,845.60x = 31,932,915.60 × 8,504,175.20
  4. Step 4: Simplify right side
    21,285,845.60x = 271,563,108,909,213.09
  5. Step 5: Solve for x
    x = 271,563,108,909,213.09/21,285,845.60
  6. Step 6: Final answer
    x = 12,757,919.70

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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.