Home / 206,930,893.69-309,892,114.97-136,858,432.58

Finding the Fourth Proportional to 206,930,893.69, 309,892,114.97 and 136,858,432.58

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Solution

The fourth proportional to 206,930,893.69, 309,892,114.97 and 136,858,432.58 is: 204,954,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,930,893.69 : 309,892,114.97 = 136,858,432.58 : x
  2. Step 2: Convert to fraction form
    206,930,893.69/309,892,114.97 = 136,858,432.58/x
  3. Step 3: Cross multiply
    206,930,893.69x = 309,892,114.97 × 136,858,432.58
  4. Step 4: Simplify right side
    206,930,893.69x = 42,411,349,123,695,360
  5. Step 5: Solve for x
    x = 42,411,349,123,695,360/206,930,893.69
  6. Step 6: Final answer
    x = 204,954,167.87

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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.