Home / 21,285,825.60-31,932,885.60-8,504,155.20

Finding the Fourth Proportional to 21,285,825.60, 31,932,885.60 and 8,504,155.20

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Solution

The fourth proportional to 21,285,825.60, 31,932,885.60 and 8,504,155.20 is: 12,757,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,825.60 : 31,932,885.60 = 8,504,155.20 : x
  2. Step 2: Convert to fraction form
    21,285,825.60/31,932,885.60 = 8,504,155.20/x
  3. Step 3: Cross multiply
    21,285,825.60x = 31,932,885.60 × 8,504,155.20
  4. Step 4: Simplify right side
    21,285,825.60x = 271,562,215,126,245.09
  5. Step 5: Solve for x
    x = 271,562,215,126,245.09/21,285,825.60
  6. Step 6: Final answer
    x = 12,757,889.70

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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.