Home / 149,322,969.60-206,065,651.20-80,645,337.60

Finding the Fourth Proportional to 149,322,969.60, 206,065,651.20 and 80,645,337.60

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Solution

The fourth proportional to 149,322,969.60, 206,065,651.20 and 80,645,337.60 is: 111,290,540.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,322,969.60 : 206,065,651.20 = 80,645,337.60 : x
  2. Step 2: Convert to fraction form
    149,322,969.60/206,065,651.20 = 80,645,337.60/x
  3. Step 3: Cross multiply
    149,322,969.60x = 206,065,651.20 × 80,645,337.60
  4. Step 4: Simplify right side
    149,322,969.60x = 16,618,234,008,787,842
  5. Step 5: Solve for x
    x = 16,618,234,008,787,842/149,322,969.60
  6. Step 6: Final answer
    x = 111,290,540.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.