Home / 13,821,420.83-20,715,993-10,398,714.80

Finding the Fourth Proportional to 13,821,420.83, 20,715,993 and 10,398,714.80

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Solution

The fourth proportional to 13,821,420.83, 20,715,993 and 10,398,714.80 is: 15,585,930.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821,420.83 : 20,715,993 = 10,398,714.80 : x
  2. Step 2: Convert to fraction form
    13,821,420.83/20,715,993 = 10,398,714.80/x
  3. Step 3: Cross multiply
    13,821,420.83x = 20,715,993 × 10,398,714.80
  4. Step 4: Simplify right side
    13,821,420.83x = 215,419,702,902,216.44
  5. Step 5: Solve for x
    x = 215,419,702,902,216.44/13,821,420.83
  6. Step 6: Final answer
    x = 15,585,930.39

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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.