Home / 20,431,014.70-30,617,842.83-11,185,217.96

Finding the Fourth Proportional to 20,431,014.70, 30,617,842.83 and 11,185,217.96

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Solution

The fourth proportional to 20,431,014.70, 30,617,842.83 and 11,185,217.96 is: 16,762,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431,014.70 : 30,617,842.83 = 11,185,217.96 : x
  2. Step 2: Convert to fraction form
    20,431,014.70/30,617,842.83 = 11,185,217.96/x
  3. Step 3: Cross multiply
    20,431,014.70x = 30,617,842.83 × 11,185,217.96
  4. Step 4: Simplify right side
    20,431,014.70x = 342,467,245,590,145.69
  5. Step 5: Solve for x
    x = 342,467,245,590,145.69/20,431,014.70
  6. Step 6: Final answer
    x = 16,762,126.14

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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.