Home / 12,775,205.80-19,162,808.70-11,515,493.80

Finding the Fourth Proportional to 12,775,205.80, 19,162,808.70 and 11,515,493.80

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Solution

The fourth proportional to 12,775,205.80, 19,162,808.70 and 11,515,493.80 is: 17,273,240.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,205.80 : 19,162,808.70 = 11,515,493.80 : x
  2. Step 2: Convert to fraction form
    12,775,205.80/19,162,808.70 = 11,515,493.80/x
  3. Step 3: Cross multiply
    12,775,205.80x = 19,162,808.70 × 11,515,493.80
  4. Step 4: Simplify right side
    12,775,205.80x = 220,669,204,775,436.06
  5. Step 5: Solve for x
    x = 220,669,204,775,436.06/12,775,205.80
  6. Step 6: Final answer
    x = 17,273,240.70

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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.