Home / 12,747,505.80-19,132,145.10-5,179,902.60

Finding the Fourth Proportional to 12,747,505.80, 19,132,145.10 and 5,179,902.60

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Solution

The fourth proportional to 12,747,505.80, 19,132,145.10 and 5,179,902.60 is: 7,774,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747,505.80 : 19,132,145.10 = 5,179,902.60 : x
  2. Step 2: Convert to fraction form
    12,747,505.80/19,132,145.10 = 5,179,902.60/x
  3. Step 3: Cross multiply
    12,747,505.80x = 19,132,145.10 × 5,179,902.60
  4. Step 4: Simplify right side
    12,747,505.80x = 99,102,648,147,067.27
  5. Step 5: Solve for x
    x = 99,102,648,147,067.27/12,747,505.80
  6. Step 6: Final answer
    x = 7,774,277.55

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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.