Home / 18,172,965.60-27,222,706.80-11,328,530.40

Finding the Fourth Proportional to 18,172,965.60, 27,222,706.80 and 11,328,530.40

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Solution

The fourth proportional to 18,172,965.60, 27,222,706.80 and 11,328,530.40 is: 16,969,891.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,965.60 : 27,222,706.80 = 11,328,530.40 : x
  2. Step 2: Convert to fraction form
    18,172,965.60/27,222,706.80 = 11,328,530.40/x
  3. Step 3: Cross multiply
    18,172,965.60x = 27,222,706.80 × 11,328,530.40
  4. Step 4: Simplify right side
    18,172,965.60x = 308,393,261,554,086.75
  5. Step 5: Solve for x
    x = 308,393,261,554,086.75/18,172,965.60
  6. Step 6: Final answer
    x = 16,969,891.89

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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.