Home / 68,945,353.34-103,386,234.09-20,405,850.62

Finding the Fourth Proportional to 68,945,353.34, 103,386,234.09 and 20,405,850.62

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Solution

The fourth proportional to 68,945,353.34, 103,386,234.09 and 20,405,850.62 is: 30,599,365.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,945,353.34 : 103,386,234.09 = 20,405,850.62 : x
  2. Step 2: Convert to fraction form
    68,945,353.34/103,386,234.09 = 20,405,850.62/x
  3. Step 3: Cross multiply
    68,945,353.34x = 103,386,234.09 × 20,405,850.62
  4. Step 4: Simplify right side
    68,945,353.34x = 2,109,684,049,004,891.75
  5. Step 5: Solve for x
    x = 2,109,684,049,004,891.75/68,945,353.34
  6. Step 6: Final answer
    x = 30,599,365.25

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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.