Home / 28,405,865.28-39,200,864.04-17,392,405.44

Finding the Fourth Proportional to 28,405,865.28, 39,200,864.04 and 17,392,405.44

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Solution

The fourth proportional to 28,405,865.28, 39,200,864.04 and 17,392,405.44 is: 24,001,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,865.28 : 39,200,864.04 = 17,392,405.44 : x
  2. Step 2: Convert to fraction form
    28,405,865.28/39,200,864.04 = 17,392,405.44/x
  3. Step 3: Cross multiply
    28,405,865.28x = 39,200,864.04 × 17,392,405.44
  4. Step 4: Simplify right side
    28,405,865.28x = 681,797,320,981,996.38
  5. Step 5: Solve for x
    x = 681,797,320,981,996.38/28,405,865.28
  6. Step 6: Final answer
    x = 24,001,990.94

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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.