Home / 12,873,108.80-19,309,663.20-8,394,132.80

Finding the Fourth Proportional to 12,873,108.80, 19,309,663.20 and 8,394,132.80

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Solution

The fourth proportional to 12,873,108.80, 19,309,663.20 and 8,394,132.80 is: 12,591,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873,108.80 : 19,309,663.20 = 8,394,132.80 : x
  2. Step 2: Convert to fraction form
    12,873,108.80/19,309,663.20 = 8,394,132.80/x
  3. Step 3: Cross multiply
    12,873,108.80x = 19,309,663.20 × 8,394,132.80
  4. Step 4: Simplify right side
    12,873,108.80x = 162,087,877,224,072.97
  5. Step 5: Solve for x
    x = 162,087,877,224,072.97/12,873,108.80
  6. Step 6: Final answer
    x = 12,591,199.20

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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.