Home / 193,993,721.10-290,990,581.65-78,919,029.90

Finding the Fourth Proportional to 193,993,721.10, 290,990,581.65 and 78,919,029.90

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Solution

The fourth proportional to 193,993,721.10, 290,990,581.65 and 78,919,029.90 is: 118,378,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,993,721.10 : 290,990,581.65 = 78,919,029.90 : x
  2. Step 2: Convert to fraction form
    193,993,721.10/290,990,581.65 = 78,919,029.90/x
  3. Step 3: Cross multiply
    193,993,721.10x = 290,990,581.65 × 78,919,029.90
  4. Step 4: Simplify right side
    193,993,721.10x = 22,964,694,413,854,740
  5. Step 5: Solve for x
    x = 22,964,694,413,854,740/193,993,721.10
  6. Step 6: Final answer
    x = 118,378,544.85

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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.