Home / 53,067,708.45-79,620,716.34-18,529,198.61

Finding the Fourth Proportional to 53,067,708.45, 79,620,716.34 and 18,529,198.61

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Solution

The fourth proportional to 53,067,708.45, 79,620,716.34 and 18,529,198.61 is: 27,800,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,067,708.45 : 79,620,716.34 = 18,529,198.61 : x
  2. Step 2: Convert to fraction form
    53,067,708.45/79,620,716.34 = 18,529,198.61/x
  3. Step 3: Cross multiply
    53,067,708.45x = 79,620,716.34 × 18,529,198.61
  4. Step 4: Simplify right side
    53,067,708.45x = 1,475,308,066,136,228.75
  5. Step 5: Solve for x
    x = 1,475,308,066,136,228.75/53,067,708.45
  6. Step 6: Final answer
    x = 27,800,485.63

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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.