Home / 12,727,727.56-17,567,965.21-8,318,116.54

Finding the Fourth Proportional to 12,727,727.56, 17,567,965.21 and 8,318,116.54

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Solution

The fourth proportional to 12,727,727.56, 17,567,965.21 and 8,318,116.54 is: 11,481,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,727,727.56 : 17,567,965.21 = 8,318,116.54 : x
  2. Step 2: Convert to fraction form
    12,727,727.56/17,567,965.21 = 8,318,116.54/x
  3. Step 3: Cross multiply
    12,727,727.56x = 17,567,965.21 × 8,318,116.54
  4. Step 4: Simplify right side
    12,727,727.56x = 146,132,382,008,240.84
  5. Step 5: Solve for x
    x = 146,132,382,008,240.84/12,727,727.56
  6. Step 6: Final answer
    x = 11,481,419.71

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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.