Home / 11,982,406.80-17,973,610.20-7,951,328.40

Finding the Fourth Proportional to 11,982,406.80, 17,973,610.20 and 7,951,328.40

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Solution

The fourth proportional to 11,982,406.80, 17,973,610.20 and 7,951,328.40 is: 11,926,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982,406.80 : 17,973,610.20 = 7,951,328.40 : x
  2. Step 2: Convert to fraction form
    11,982,406.80/17,973,610.20 = 7,951,328.40/x
  3. Step 3: Cross multiply
    11,982,406.80x = 17,973,610.20 × 7,951,328.40
  4. Step 4: Simplify right side
    11,982,406.80x = 142,914,077,233,789.69
  5. Step 5: Solve for x
    x = 142,914,077,233,789.69/11,982,406.80
  6. Step 6: Final answer
    x = 11,926,992.60

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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.