Home / 21,285,810.60-31,932,863.10-8,504,140.20

Finding the Fourth Proportional to 21,285,810.60, 31,932,863.10 and 8,504,140.20

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Solution

The fourth proportional to 21,285,810.60, 31,932,863.10 and 8,504,140.20 is: 12,757,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,810.60 : 31,932,863.10 = 8,504,140.20 : x
  2. Step 2: Convert to fraction form
    21,285,810.60/31,932,863.10 = 8,504,140.20/x
  3. Step 3: Cross multiply
    21,285,810.60x = 31,932,863.10 × 8,504,140.20
  4. Step 4: Simplify right side
    21,285,810.60x = 271,561,544,789,806.59
  5. Step 5: Solve for x
    x = 271,561,544,789,806.59/21,285,810.60
  6. Step 6: Final answer
    x = 12,757,867.20

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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.