Home / 80,676,100.60-121,014,150.90-20,091,826.60

Finding the Fourth Proportional to 80,676,100.60, 121,014,150.90 and 20,091,826.60

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Solution

The fourth proportional to 80,676,100.60, 121,014,150.90 and 20,091,826.60 is: 30,137,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,676,100.60 : 121,014,150.90 = 20,091,826.60 : x
  2. Step 2: Convert to fraction form
    80,676,100.60/121,014,150.90 = 20,091,826.60/x
  3. Step 3: Cross multiply
    80,676,100.60x = 121,014,150.90 × 20,091,826.60
  4. Step 4: Simplify right side
    80,676,100.60x = 2,431,395,336,029,034
  5. Step 5: Solve for x
    x = 2,431,395,336,029,034/80,676,100.60
  6. Step 6: Final answer
    x = 30,137,739.90

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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.