Home / 18,145,816.22-25,024,405.92-13,243,272.86

Finding the Fourth Proportional to 18,145,816.22, 25,024,405.92 and 13,243,272.86

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Solution

The fourth proportional to 18,145,816.22, 25,024,405.92 and 13,243,272.86 is: 18,263,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,816.22 : 25,024,405.92 = 13,243,272.86 : x
  2. Step 2: Convert to fraction form
    18,145,816.22/25,024,405.92 = 13,243,272.86/x
  3. Step 3: Cross multiply
    18,145,816.22x = 25,024,405.92 × 13,243,272.86
  4. Step 4: Simplify right side
    18,145,816.22x = 331,405,035,770,858.12
  5. Step 5: Solve for x
    x = 331,405,035,770,858.12/18,145,816.22
  6. Step 6: Final answer
    x = 18,263,440.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.