Home / 139,534,103.76-192,555,183.60-77,654,425.92

Finding the Fourth Proportional to 139,534,103.76, 192,555,183.60 and 77,654,425.92

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Solution

The fourth proportional to 139,534,103.76, 192,555,183.60 and 77,654,425.92 is: 107,162,061.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,534,103.76 : 192,555,183.60 = 77,654,425.92 : x
  2. Step 2: Convert to fraction form
    139,534,103.76/192,555,183.60 = 77,654,425.92/x
  3. Step 3: Cross multiply
    139,534,103.76x = 192,555,183.60 × 77,654,425.92
  4. Step 4: Simplify right side
    139,534,103.76x = 14,952,762,240,378,198
  5. Step 5: Solve for x
    x = 14,952,762,240,378,198/139,534,103.76
  6. Step 6: Final answer
    x = 107,162,061.73

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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.