Home / 21,093,672.80-31,633,136.40-10,992,936.80

Finding the Fourth Proportional to 21,093,672.80, 31,633,136.40 and 10,992,936.80

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Solution

The fourth proportional to 21,093,672.80, 31,633,136.40 and 10,992,936.80 is: 16,485,562.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093,672.80 : 31,633,136.40 = 10,992,936.80 : x
  2. Step 2: Convert to fraction form
    21,093,672.80/31,633,136.40 = 10,992,936.80/x
  3. Step 3: Cross multiply
    21,093,672.80x = 31,633,136.40 × 10,992,936.80
  4. Step 4: Simplify right side
    21,093,672.80x = 347,741,069,230,979.50
  5. Step 5: Solve for x
    x = 347,741,069,230,979.50/21,093,672.80
  6. Step 6: Final answer
    x = 16,485,562.88

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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.