Home / 406,723,609.35-561,278,942.57-221,084,625.04

Finding the Fourth Proportional to 406,723,609.35, 561,278,942.57 and 221,084,625.04

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Solution

The fourth proportional to 406,723,609.35, 561,278,942.57 and 221,084,625.04 is: 305,096,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,723,609.35 : 561,278,942.57 = 221,084,625.04 : x
  2. Step 2: Convert to fraction form
    406,723,609.35/561,278,942.57 = 221,084,625.04/x
  3. Step 3: Cross multiply
    406,723,609.35x = 561,278,942.57 × 221,084,625.04
  4. Step 4: Simplify right side
    406,723,609.35x = 124,090,144,560,085,648
  5. Step 5: Solve for x
    x = 124,090,144,560,085,648/406,723,609.35
  6. Step 6: Final answer
    x = 305,096,979.15

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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.