Home / 18,728,610.49-28,073,760.36-9,489,467.71

Finding the Fourth Proportional to 18,728,610.49, 28,073,760.36 and 9,489,467.71

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Solution

The fourth proportional to 18,728,610.49, 28,073,760.36 and 9,489,467.71 is: 14,224,495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,610.49 : 28,073,760.36 = 9,489,467.71 : x
  2. Step 2: Convert to fraction form
    18,728,610.49/28,073,760.36 = 9,489,467.71/x
  3. Step 3: Cross multiply
    18,728,610.49x = 28,073,760.36 × 9,489,467.71
  4. Step 4: Simplify right side
    18,728,610.49x = 266,405,042,434,498
  5. Step 5: Solve for x
    x = 266,405,042,434,498/18,728,610.49
  6. Step 6: Final answer
    x = 14,224,495.86

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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.