Home / 13,215,021.20-19,822,531.80-9,183,942.80

Finding the Fourth Proportional to 13,215,021.20, 19,822,531.80 and 9,183,942.80

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Solution

The fourth proportional to 13,215,021.20, 19,822,531.80 and 9,183,942.80 is: 13,775,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,021.20 : 19,822,531.80 = 9,183,942.80 : x
  2. Step 2: Convert to fraction form
    13,215,021.20/19,822,531.80 = 9,183,942.80/x
  3. Step 3: Cross multiply
    13,215,021.20x = 19,822,531.80 × 9,183,942.80
  4. Step 4: Simplify right side
    13,215,021.20x = 182,048,998,202,381.06
  5. Step 5: Solve for x
    x = 182,048,998,202,381.06/13,215,021.20
  6. Step 6: Final answer
    x = 13,775,914.20

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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.