Home / 68,198,517.65-102,285,452.70-19,664,438.69

Finding the Fourth Proportional to 68,198,517.65, 102,285,452.70 and 19,664,438.69

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Solution

The fourth proportional to 68,198,517.65, 102,285,452.70 and 19,664,438.69 is: 29,493,104.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,198,517.65 : 102,285,452.70 = 19,664,438.69 : x
  2. Step 2: Convert to fraction form
    68,198,517.65/102,285,452.70 = 19,664,438.69/x
  3. Step 3: Cross multiply
    68,198,517.65x = 102,285,452.70 × 19,664,438.69
  4. Step 4: Simplify right side
    68,198,517.65x = 2,011,386,012,986,617.50
  5. Step 5: Solve for x
    x = 2,011,386,012,986,617.50/68,198,517.65
  6. Step 6: Final answer
    x = 29,493,104.58

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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.