Home / 30,002,821.20-45,004,231.80-20,755,747.80

Finding the Fourth Proportional to 30,002,821.20, 45,004,231.80 and 20,755,747.80

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Solution

The fourth proportional to 30,002,821.20, 45,004,231.80 and 20,755,747.80 is: 31,133,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002,821.20 : 45,004,231.80 = 20,755,747.80 : x
  2. Step 2: Convert to fraction form
    30,002,821.20/45,004,231.80 = 20,755,747.80/x
  3. Step 3: Cross multiply
    30,002,821.20x = 45,004,231.80 × 20,755,747.80
  4. Step 4: Simplify right side
    30,002,821.20x = 934,096,485,173,540
  5. Step 5: Solve for x
    x = 934,096,485,173,540/30,002,821.20
  6. Step 6: Final answer
    x = 31,133,621.70

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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.