Home / 18,419,420.44-25,421,242.26-10,682,864.20

Finding the Fourth Proportional to 18,419,420.44, 25,421,242.26 and 10,682,864.20

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Solution

The fourth proportional to 18,419,420.44, 25,421,242.26 and 10,682,864.20 is: 14,743,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419,420.44 : 25,421,242.26 = 10,682,864.20 : x
  2. Step 2: Convert to fraction form
    18,419,420.44/25,421,242.26 = 10,682,864.20/x
  3. Step 3: Cross multiply
    18,419,420.44x = 25,421,242.26 × 10,682,864.20
  4. Step 4: Simplify right side
    18,419,420.44x = 271,571,678,858,881.09
  5. Step 5: Solve for x
    x = 271,571,678,858,881.09/18,419,420.44
  6. Step 6: Final answer
    x = 14,743,768.93

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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.