Home / 18,906,073.38-28,342,285.32-7,388,921.52

Finding the Fourth Proportional to 18,906,073.38, 28,342,285.32 and 7,388,921.52

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Solution

The fourth proportional to 18,906,073.38, 28,342,285.32 and 7,388,921.52 is: 11,076,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,906,073.38 : 28,342,285.32 = 7,388,921.52 : x
  2. Step 2: Convert to fraction form
    18,906,073.38/28,342,285.32 = 7,388,921.52/x
  3. Step 3: Cross multiply
    18,906,073.38x = 28,342,285.32 × 7,388,921.52
  4. Step 4: Simplify right side
    18,906,073.38x = 209,418,921,926,928.06
  5. Step 5: Solve for x
    x = 209,418,921,926,928.06/18,906,073.38
  6. Step 6: Final answer
    x = 11,076,806.79

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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.