Home / 18,231,740.40-27,330,503.40-6,879,817.20

Finding the Fourth Proportional to 18,231,740.40, 27,330,503.40 and 6,879,817.20

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Solution

The fourth proportional to 18,231,740.40, 27,330,503.40 and 6,879,817.20 is: 10,313,270.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,740.40 : 27,330,503.40 = 6,879,817.20 : x
  2. Step 2: Convert to fraction form
    18,231,740.40/27,330,503.40 = 6,879,817.20/x
  3. Step 3: Cross multiply
    18,231,740.40x = 27,330,503.40 × 6,879,817.20
  4. Step 4: Simplify right side
    18,231,740.40x = 188,028,867,375,978.47
  5. Step 5: Solve for x
    x = 188,028,867,375,978.47/18,231,740.40
  6. Step 6: Final answer
    x = 10,313,270.33

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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.