Home / 18,420,825.92-25,420,917.08-10,161,236.32

Finding the Fourth Proportional to 18,420,825.92, 25,420,917.08 and 10,161,236.32

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Solution

The fourth proportional to 18,420,825.92, 25,420,917.08 and 10,161,236.32 is: 14,022,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420,825.92 : 25,420,917.08 = 10,161,236.32 : x
  2. Step 2: Convert to fraction form
    18,420,825.92/25,420,917.08 = 10,161,236.32/x
  3. Step 3: Cross multiply
    18,420,825.92x = 25,420,917.08 × 10,161,236.32
  4. Step 4: Simplify right side
    18,420,825.92x = 258,307,946,061,589.62
  5. Step 5: Solve for x
    x = 258,307,946,061,589.62/18,420,825.92
  6. Step 6: Final answer
    x = 14,022,603.94

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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.