Home / 15,692,199.76-21,664,896.96-12,442,142.80

Finding the Fourth Proportional to 15,692,199.76, 21,664,896.96 and 12,442,142.80

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Solution

The fourth proportional to 15,692,199.76, 21,664,896.96 and 12,442,142.80 is: 17,177,817.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692,199.76 : 21,664,896.96 = 12,442,142.80 : x
  2. Step 2: Convert to fraction form
    15,692,199.76/21,664,896.96 = 12,442,142.80/x
  3. Step 3: Cross multiply
    15,692,199.76x = 21,664,896.96 × 12,442,142.80
  4. Step 4: Simplify right side
    15,692,199.76x = 269,557,741,723,605.91
  5. Step 5: Solve for x
    x = 269,557,741,723,605.91/15,692,199.76
  6. Step 6: Final answer
    x = 17,177,817.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.