Home / 20,625,846.16-30,936,351.80-6,978,951.76

Finding the Fourth Proportional to 20,625,846.16, 30,936,351.80 and 6,978,951.76

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Solution

The fourth proportional to 20,625,846.16, 30,936,351.80 and 6,978,951.76 is: 10,467,609.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625,846.16 : 30,936,351.80 = 6,978,951.76 : x
  2. Step 2: Convert to fraction form
    20,625,846.16/30,936,351.80 = 6,978,951.76/x
  3. Step 3: Cross multiply
    20,625,846.16x = 30,936,351.80 × 6,978,951.76
  4. Step 4: Simplify right side
    20,625,846.16x = 215,903,306,842,589.16
  5. Step 5: Solve for x
    x = 215,903,306,842,589.16/20,625,846.16
  6. Step 6: Final answer
    x = 10,467,609.68

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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.