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Finding the Fourth Proportional to 220,110,520.80, 330,165,781.20 and 220,110,520.80

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Solution

The fourth proportional to 220,110,520.80, 330,165,781.20 and 220,110,520.80 is: 330,165,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,110,520.80 : 330,165,781.20 = 220,110,520.80 : x
  2. Step 2: Convert to fraction form
    220,110,520.80/330,165,781.20 = 220,110,520.80/x
  3. Step 3: Cross multiply
    220,110,520.80x = 330,165,781.20 × 220,110,520.80
  4. Step 4: Simplify right side
    220,110,520.80x = 72,672,962,050,270,848
  5. Step 5: Solve for x
    x = 72,672,962,050,270,848/220,110,520.80
  6. Step 6: Final answer
    x = 330,165,781.20

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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.