Home / 12,775,211.80-19,162,817.70-11,515,499.80

Finding the Fourth Proportional to 12,775,211.80, 19,162,817.70 and 11,515,499.80

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Solution

The fourth proportional to 12,775,211.80, 19,162,817.70 and 11,515,499.80 is: 17,273,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,211.80 : 19,162,817.70 = 11,515,499.80 : x
  2. Step 2: Convert to fraction form
    12,775,211.80/19,162,817.70 = 11,515,499.80/x
  3. Step 3: Cross multiply
    12,775,211.80x = 19,162,817.70 × 11,515,499.80
  4. Step 4: Simplify right side
    12,775,211.80x = 220,669,423,391,786.47
  5. Step 5: Solve for x
    x = 220,669,423,391,786.47/12,775,211.80
  6. Step 6: Final answer
    x = 17,273,249.70

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1.5x scale

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.