Home / 80,734,180.80-121,101,271.20-66,385,273.80

Finding the Fourth Proportional to 80,734,180.80, 121,101,271.20 and 66,385,273.80

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Solution

The fourth proportional to 80,734,180.80, 121,101,271.20 and 66,385,273.80 is: 99,577,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,734,180.80 : 121,101,271.20 = 66,385,273.80 : x
  2. Step 2: Convert to fraction form
    80,734,180.80/121,101,271.20 = 66,385,273.80/x
  3. Step 3: Cross multiply
    80,734,180.80x = 121,101,271.20 × 66,385,273.80
  4. Step 4: Simplify right side
    80,734,180.80x = 8,039,341,046,140,054
  5. Step 5: Solve for x
    x = 8,039,341,046,140,054/80,734,180.80
  6. Step 6: Final answer
    x = 99,577,910.70

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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.