Home / 20,173,760.78-27,839,758.12-11,006,404.34

Finding the Fourth Proportional to 20,173,760.78, 27,839,758.12 and 11,006,404.34

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Solution

The fourth proportional to 20,173,760.78, 27,839,758.12 and 11,006,404.34 is: 15,188,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173,760.78 : 27,839,758.12 = 11,006,404.34 : x
  2. Step 2: Convert to fraction form
    20,173,760.78/27,839,758.12 = 11,006,404.34/x
  3. Step 3: Cross multiply
    20,173,760.78x = 27,839,758.12 × 11,006,404.34
  4. Step 4: Simplify right side
    20,173,760.78x = 306,415,634,429,803.44
  5. Step 5: Solve for x
    x = 306,415,634,429,803.44/20,173,760.78
  6. Step 6: Final answer
    x = 15,188,820.66

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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.