Home / 28,266,116.80-42,399,175.20-18,580,604.60

Finding the Fourth Proportional to 28,266,116.80, 42,399,175.20 and 18,580,604.60

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Solution

The fourth proportional to 28,266,116.80, 42,399,175.20 and 18,580,604.60 is: 27,870,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266,116.80 : 42,399,175.20 = 18,580,604.60 : x
  2. Step 2: Convert to fraction form
    28,266,116.80/42,399,175.20 = 18,580,604.60/x
  3. Step 3: Cross multiply
    28,266,116.80x = 42,399,175.20 × 18,580,604.60
  4. Step 4: Simplify right side
    28,266,116.80x = 787,802,309,757,326
  5. Step 5: Solve for x
    x = 787,802,309,757,326/28,266,116.80
  6. Step 6: Final answer
    x = 27,870,906.90

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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.