Home / 12,456,019.82-18,692,369.03-5,169,485.64

Finding the Fourth Proportional to 12,456,019.82, 18,692,369.03 and 5,169,485.64

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Solution

The fourth proportional to 12,456,019.82, 18,692,369.03 and 5,169,485.64 is: 7,757,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,019.82 : 18,692,369.03 = 5,169,485.64 : x
  2. Step 2: Convert to fraction form
    12,456,019.82/18,692,369.03 = 5,169,485.64/x
  3. Step 3: Cross multiply
    12,456,019.82x = 18,692,369.03 × 5,169,485.64
  4. Step 4: Simplify right side
    12,456,019.82x = 96,629,933,252,318.28
  5. Step 5: Solve for x
    x = 96,629,933,252,318.28/12,456,019.82
  6. Step 6: Final answer
    x = 7,757,689.43

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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.