Home / 80,466,591,738.80-120,699,887,608.20-72,630,175,329.20

Finding the Fourth Proportional to 80,466,591,738.80, 120,699,887,608.20 and 72,630,175,329.20

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Solution

The fourth proportional to 80,466,591,738.80, 120,699,887,608.20 and 72,630,175,329.20 is: 108,945,262,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,466,591,738.80 : 120,699,887,608.20 = 72,630,175,329.20 : x
  2. Step 2: Convert to fraction form
    80,466,591,738.80/120,699,887,608.20 = 72,630,175,329.20/x
  3. Step 3: Cross multiply
    80,466,591,738.80x = 120,699,887,608.20 × 72,630,175,329.20
  4. Step 4: Simplify right side
    80,466,591,738.80x = 8,766,453,999,198,299,750,400
  5. Step 5: Solve for x
    x = 8,766,453,999,198,299,750,400/80,466,591,738.80
  6. Step 6: Final answer
    x = 108,945,262,993.80

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1.5x scale

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.