Home / 13,691,136.80-18,893,049.55-7,494,996.08

Finding the Fourth Proportional to 13,691,136.80, 18,893,049.55 and 7,494,996.08

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Solution

The fourth proportional to 13,691,136.80, 18,893,049.55 and 7,494,996.08 is: 10,342,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691,136.80 : 18,893,049.55 = 7,494,996.08 : x
  2. Step 2: Convert to fraction form
    13,691,136.80/18,893,049.55 = 7,494,996.08/x
  3. Step 3: Cross multiply
    13,691,136.80x = 18,893,049.55 × 7,494,996.08
  4. Step 4: Simplify right side
    13,691,136.80x = 141,603,332,344,990.88
  5. Step 5: Solve for x
    x = 141,603,332,344,990.88/13,691,136.80
  6. Step 6: Final answer
    x = 10,342,700.86

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1.5x scale

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.