Home / 20,690,782.38-28,553,273.01-11,994,003.54

Finding the Fourth Proportional to 20,690,782.38, 28,553,273.01 and 11,994,003.54

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Solution

The fourth proportional to 20,690,782.38, 28,553,273.01 and 11,994,003.54 is: 16,551,721.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690,782.38 : 28,553,273.01 = 11,994,003.54 : x
  2. Step 2: Convert to fraction form
    20,690,782.38/28,553,273.01 = 11,994,003.54/x
  3. Step 3: Cross multiply
    20,690,782.38x = 28,553,273.01 × 11,994,003.54
  4. Step 4: Simplify right side
    20,690,782.38x = 342,468,057,560,526.44
  5. Step 5: Solve for x
    x = 342,468,057,560,526.44/20,690,782.38
  6. Step 6: Final answer
    x = 16,551,721.02

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1.5x scale

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.