Home / 321,647,939.40-482,675,975.34-137,416,803.54

Finding the Fourth Proportional to 321,647,939.40, 482,675,975.34 and 137,416,803.54

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Solution

The fourth proportional to 321,647,939.40, 482,675,975.34 and 137,416,803.54 is: 206,212,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,647,939.40 : 482,675,975.34 = 137,416,803.54 : x
  2. Step 2: Convert to fraction form
    321,647,939.40/482,675,975.34 = 137,416,803.54/x
  3. Step 3: Cross multiply
    321,647,939.40x = 482,675,975.34 × 137,416,803.54
  4. Step 4: Simplify right side
    321,647,939.40x = 66,327,789,676,774,656
  5. Step 5: Solve for x
    x = 66,327,789,676,774,656/321,647,939.40
  6. Step 6: Final answer
    x = 206,212,387.99

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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.