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Finding the Fourth Proportional to 79,906,798.80, 119,860,198.20 and 36,860,077.80

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Solution

The fourth proportional to 79,906,798.80, 119,860,198.20 and 36,860,077.80 is: 55,290,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,906,798.80 : 119,860,198.20 = 36,860,077.80 : x
  2. Step 2: Convert to fraction form
    79,906,798.80/119,860,198.20 = 36,860,077.80/x
  3. Step 3: Cross multiply
    79,906,798.80x = 119,860,198.20 × 36,860,077.80
  4. Step 4: Simplify right side
    79,906,798.80x = 4,418,056,230,775,419.50
  5. Step 5: Solve for x
    x = 4,418,056,230,775,419.50/79,906,798.80
  6. Step 6: Final answer
    x = 55,290,116.70

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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.