Home / 20,190,552.20-30,285,828.30-7,420,221.80

Finding the Fourth Proportional to 20,190,552.20, 30,285,828.30 and 7,420,221.80

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Solution

The fourth proportional to 20,190,552.20, 30,285,828.30 and 7,420,221.80 is: 11,130,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,552.20 : 30,285,828.30 = 7,420,221.80 : x
  2. Step 2: Convert to fraction form
    20,190,552.20/30,285,828.30 = 7,420,221.80/x
  3. Step 3: Cross multiply
    20,190,552.20x = 30,285,828.30 × 7,420,221.80
  4. Step 4: Simplify right side
    20,190,552.20x = 224,727,563,382,716.94
  5. Step 5: Solve for x
    x = 224,727,563,382,716.94/20,190,552.20
  6. Step 6: Final answer
    x = 11,130,332.70

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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.