Home / 115,029,149.87-172,629,418.76-84,402,868.43

Finding the Fourth Proportional to 115,029,149.87, 172,629,418.76 and 84,402,868.43

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Solution

The fourth proportional to 115,029,149.87, 172,629,418.76 and 84,402,868.43 is: 126,667,180.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,029,149.87 : 172,629,418.76 = 84,402,868.43 : x
  2. Step 2: Convert to fraction form
    115,029,149.87/172,629,418.76 = 84,402,868.43/x
  3. Step 3: Cross multiply
    115,029,149.87x = 172,629,418.76 × 84,402,868.43
  4. Step 4: Simplify right side
    115,029,149.87x = 14,570,418,118,325,640
  5. Step 5: Solve for x
    x = 14,570,418,118,325,640/115,029,149.87
  6. Step 6: Final answer
    x = 126,667,180.75

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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.