Home / 7,371,843.78-11,057,018.40-1,979,793.60

Finding the Fourth Proportional to 7,371,843.78, 11,057,018.40 and 1,979,793.60

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Solution

The fourth proportional to 7,371,843.78, 11,057,018.40 and 1,979,793.60 is: 2,969,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371,843.78 : 11,057,018.40 = 1,979,793.60 : x
  2. Step 2: Convert to fraction form
    7,371,843.78/11,057,018.40 = 1,979,793.60/x
  3. Step 3: Cross multiply
    7,371,843.78x = 11,057,018.40 × 1,979,793.60
  4. Step 4: Simplify right side
    7,371,843.78x = 21,890,614,263,402.24
  5. Step 5: Solve for x
    x = 21,890,614,263,402.24/7,371,843.78
  6. Step 6: Final answer
    x = 2,969,489.71

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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.