Home / 122,213,976.39-168,651,923.72-67,209,834.51

Finding the Fourth Proportional to 122,213,976.39, 168,651,923.72 and 67,209,834.51

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Solution

The fourth proportional to 122,213,976.39, 168,651,923.72 and 67,209,834.51 is: 92,747,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,213,976.39 : 168,651,923.72 = 67,209,834.51 : x
  2. Step 2: Convert to fraction form
    122,213,976.39/168,651,923.72 = 67,209,834.51/x
  3. Step 3: Cross multiply
    122,213,976.39x = 168,651,923.72 × 67,209,834.51
  4. Step 4: Simplify right side
    122,213,976.39x = 11,335,067,882,678,296
  5. Step 5: Solve for x
    x = 11,335,067,882,678,296/122,213,976.39
  6. Step 6: Final answer
    x = 92,747,721.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.