Home / 413,893,414.31-620,609,207.20-137,394,470.57

Finding the Fourth Proportional to 413,893,414.31, 620,609,207.20 and 137,394,470.57

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Solution

The fourth proportional to 413,893,414.31, 620,609,207.20 and 137,394,470.57 is: 206,015,052.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,893,414.31 : 620,609,207.20 = 137,394,470.57 : x
  2. Step 2: Convert to fraction form
    413,893,414.31/620,609,207.20 = 137,394,470.57/x
  3. Step 3: Cross multiply
    413,893,414.31x = 620,609,207.20 × 137,394,470.57
  4. Step 4: Simplify right side
    413,893,414.31x = 85,268,273,450,664,896
  5. Step 5: Solve for x
    x = 85,268,273,450,664,896/413,893,414.31
  6. Step 6: Final answer
    x = 206,015,052.44

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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.