Home / 137,665,020.94-206,503,229.86-40,620,728.58

Finding the Fourth Proportional to 137,665,020.94, 206,503,229.86 and 40,620,728.58

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Solution

The fourth proportional to 137,665,020.94, 206,503,229.86 and 40,620,728.58 is: 60,932,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,665,020.94 : 206,503,229.86 = 40,620,728.58 : x
  2. Step 2: Convert to fraction form
    137,665,020.94/206,503,229.86 = 40,620,728.58/x
  3. Step 3: Cross multiply
    137,665,020.94x = 206,503,229.86 × 40,620,728.58
  4. Step 4: Simplify right side
    137,665,020.94x = 8,388,311,651,036,412
  5. Step 5: Solve for x
    x = 8,388,311,651,036,412/137,665,020.94
  6. Step 6: Final answer
    x = 60,932,774.31

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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.