Home / 80,120,501.70-120,180,752.55-28,984,067.70

Finding the Fourth Proportional to 80,120,501.70, 120,180,752.55 and 28,984,067.70

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Solution

The fourth proportional to 80,120,501.70, 120,180,752.55 and 28,984,067.70 is: 43,476,101.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,120,501.70 : 120,180,752.55 = 28,984,067.70 : x
  2. Step 2: Convert to fraction form
    80,120,501.70/120,180,752.55 = 28,984,067.70/x
  3. Step 3: Cross multiply
    80,120,501.70x = 120,180,752.55 × 28,984,067.70
  4. Step 4: Simplify right side
    80,120,501.70x = 3,483,327,068,146,147.50
  5. Step 5: Solve for x
    x = 3,483,327,068,146,147.50/80,120,501.70
  6. Step 6: Final answer
    x = 43,476,101.55

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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.