Home / 18,711,640.80-28,067,461.20-17,311,960.80

Finding the Fourth Proportional to 18,711,640.80, 28,067,461.20 and 17,311,960.80

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Solution

The fourth proportional to 18,711,640.80, 28,067,461.20 and 17,311,960.80 is: 25,967,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,640.80 : 28,067,461.20 = 17,311,960.80 : x
  2. Step 2: Convert to fraction form
    18,711,640.80/28,067,461.20 = 17,311,960.80/x
  3. Step 3: Cross multiply
    18,711,640.80x = 28,067,461.20 × 17,311,960.80
  4. Step 4: Simplify right side
    18,711,640.80x = 485,902,788,049,920.94
  5. Step 5: Solve for x
    x = 485,902,788,049,920.94/18,711,640.80
  6. Step 6: Final answer
    x = 25,967,941.20

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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.