Home / 87,504,006.80-131,004,067.80-78,434,080.40

Finding the Fourth Proportional to 87,504,006.80, 131,004,067.80 and 78,434,080.40

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Solution

The fourth proportional to 87,504,006.80, 131,004,067.80 and 78,434,080.40 is: 117,425,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,504,006.80 : 131,004,067.80 = 78,434,080.40 : x
  2. Step 2: Convert to fraction form
    87,504,006.80/131,004,067.80 = 78,434,080.40/x
  3. Step 3: Cross multiply
    87,504,006.80x = 131,004,067.80 × 78,434,080.40
  4. Step 4: Simplify right side
    87,504,006.80x = 10,275,183,586,552,252
  5. Step 5: Solve for x
    x = 10,275,183,586,552,252/87,504,006.80
  6. Step 6: Final answer
    x = 117,425,292.42

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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.