Home / 21,285,809.60-31,932,861.60-8,504,139.20

Finding the Fourth Proportional to 21,285,809.60, 31,932,861.60 and 8,504,139.20

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Solution

The fourth proportional to 21,285,809.60, 31,932,861.60 and 8,504,139.20 is: 12,757,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,809.60 : 31,932,861.60 = 8,504,139.20 : x
  2. Step 2: Convert to fraction form
    21,285,809.60/31,932,861.60 = 8,504,139.20/x
  3. Step 3: Cross multiply
    21,285,809.60x = 31,932,861.60 × 8,504,139.20
  4. Step 4: Simplify right side
    21,285,809.60x = 271,561,500,100,734.72
  5. Step 5: Solve for x
    x = 271,561,500,100,734.72/21,285,809.60
  6. Step 6: Final answer
    x = 12,757,865.70

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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.