Home / 206,930,892.69-309,892,113.47-136,858,431.58

Finding the Fourth Proportional to 206,930,892.69, 309,892,113.47 and 136,858,431.58

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Solution

The fourth proportional to 206,930,892.69, 309,892,113.47 and 136,858,431.58 is: 204,954,166.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,930,892.69 : 309,892,113.47 = 136,858,431.58 : x
  2. Step 2: Convert to fraction form
    206,930,892.69/309,892,113.47 = 136,858,431.58/x
  3. Step 3: Cross multiply
    206,930,892.69x = 309,892,113.47 × 136,858,431.58
  4. Step 4: Simplify right side
    206,930,892.69x = 42,411,348,608,083,008
  5. Step 5: Solve for x
    x = 42,411,348,608,083,008/206,930,892.69
  6. Step 6: Final answer
    x = 204,954,166.37

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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.