Home / 148,689,866.20-222,958,218.66-66,738,489.61

Finding the Fourth Proportional to 148,689,866.20, 222,958,218.66 and 66,738,489.61

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Solution

The fourth proportional to 148,689,866.20, 222,958,218.66 and 66,738,489.61 is: 100,073,361.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,689,866.20 : 222,958,218.66 = 66,738,489.61 : x
  2. Step 2: Convert to fraction form
    148,689,866.20/222,958,218.66 = 66,738,489.61/x
  3. Step 3: Cross multiply
    148,689,866.20x = 222,958,218.66 × 66,738,489.61
  4. Step 4: Simplify right side
    148,689,866.20x = 14,879,894,759,504,518
  5. Step 5: Solve for x
    x = 14,879,894,759,504,518/148,689,866.20
  6. Step 6: Final answer
    x = 100,073,361.69

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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.