Home / 12,811,704.30-19,217,556.45-11,971,896.30

Finding the Fourth Proportional to 12,811,704.30, 19,217,556.45 and 11,971,896.30

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Solution

The fourth proportional to 12,811,704.30, 19,217,556.45 and 11,971,896.30 is: 17,957,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811,704.30 : 19,217,556.45 = 11,971,896.30 : x
  2. Step 2: Convert to fraction form
    12,811,704.30/19,217,556.45 = 11,971,896.30/x
  3. Step 3: Cross multiply
    12,811,704.30x = 19,217,556.45 × 11,971,896.30
  4. Step 4: Simplify right side
    12,811,704.30x = 230,070,592,958,796.12
  5. Step 5: Solve for x
    x = 230,070,592,958,796.12/12,811,704.30
  6. Step 6: Final answer
    x = 17,957,844.45

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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.