Home / 122,164,243-168,590,144.82-74,482,249.48

Finding the Fourth Proportional to 122,164,243, 168,590,144.82 and 74,482,249.48

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Solution

The fourth proportional to 122,164,243, 168,590,144.82 and 74,482,249.48 is: 102,787,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,164,243 : 168,590,144.82 = 74,482,249.48 : x
  2. Step 2: Convert to fraction form
    122,164,243/168,590,144.82 = 74,482,249.48/x
  3. Step 3: Cross multiply
    122,164,243x = 168,590,144.82 × 74,482,249.48
  4. Step 4: Simplify right side
    122,164,243x = 12,556,973,226,352,570
  5. Step 5: Solve for x
    x = 12,556,973,226,352,570/122,164,243
  6. Step 6: Final answer
    x = 102,787,631.78

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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.