Home / 18,420,455.22-25,410,023.34-12,922,016.46

Finding the Fourth Proportional to 18,420,455.22, 25,410,023.34 and 12,922,016.46

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Solution

The fourth proportional to 18,420,455.22, 25,410,023.34 and 12,922,016.46 is: 17,825,223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420,455.22 : 25,410,023.34 = 12,922,016.46 : x
  2. Step 2: Convert to fraction form
    18,420,455.22/25,410,023.34 = 12,922,016.46/x
  3. Step 3: Cross multiply
    18,420,455.22x = 25,410,023.34 × 12,922,016.46
  4. Step 4: Simplify right side
    18,420,455.22x = 328,348,739,848,464.19
  5. Step 5: Solve for x
    x = 328,348,739,848,464.19/18,420,455.22
  6. Step 6: Final answer
    x = 17,825,223.97

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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.