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Finding the Fourth Proportional to 72,633,169.80, 108,949,754.70 and 29,503,780.20

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Solution

The fourth proportional to 72,633,169.80, 108,949,754.70 and 29,503,780.20 is: 44,255,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,633,169.80 : 108,949,754.70 = 29,503,780.20 : x
  2. Step 2: Convert to fraction form
    72,633,169.80/108,949,754.70 = 29,503,780.20/x
  3. Step 3: Cross multiply
    72,633,169.80x = 108,949,754.70 × 29,503,780.20
  4. Step 4: Simplify right side
    72,633,169.80x = 3,214,429,615,512,717
  5. Step 5: Solve for x
    x = 3,214,429,615,512,717/72,633,169.80
  6. Step 6: Final answer
    x = 44,255,670.30

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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.