Home / 13,179,131.20-19,747,701.60-9,777,908.80

Finding the Fourth Proportional to 13,179,131.20, 19,747,701.60 and 9,777,908.80

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Solution

The fourth proportional to 13,179,131.20, 19,747,701.60 and 9,777,908.80 is: 14,651,286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179,131.20 : 19,747,701.60 = 9,777,908.80 : x
  2. Step 2: Convert to fraction form
    13,179,131.20/19,747,701.60 = 9,777,908.80/x
  3. Step 3: Cross multiply
    13,179,131.20x = 19,747,701.60 × 9,777,908.80
  4. Step 4: Simplify right side
    13,179,131.20x = 193,091,225,254,414.09
  5. Step 5: Solve for x
    x = 193,091,225,254,414.09/13,179,131.20
  6. Step 6: Final answer
    x = 14,651,286.37

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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.