Home / 22,019,942.20-33,029,913.30-21,138,143.80

Finding the Fourth Proportional to 22,019,942.20, 33,029,913.30 and 21,138,143.80

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Solution

The fourth proportional to 22,019,942.20, 33,029,913.30 and 21,138,143.80 is: 31,707,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,019,942.20 : 33,029,913.30 = 21,138,143.80 : x
  2. Step 2: Convert to fraction form
    22,019,942.20/33,029,913.30 = 21,138,143.80/x
  3. Step 3: Cross multiply
    22,019,942.20x = 33,029,913.30 × 21,138,143.80
  4. Step 4: Simplify right side
    22,019,942.20x = 698,191,057,036,932.62
  5. Step 5: Solve for x
    x = 698,191,057,036,932.62/22,019,942.20
  6. Step 6: Final answer
    x = 31,707,215.70

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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.