Home / 139,538,629.62-192,563,311.44-77,673,582.78

Finding the Fourth Proportional to 139,538,629.62, 192,563,311.44 and 77,673,582.78

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Solution

The fourth proportional to 139,538,629.62, 192,563,311.44 and 77,673,582.78 is: 107,189,545.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538,629.62 : 192,563,311.44 = 77,673,582.78 : x
  2. Step 2: Convert to fraction form
    139,538,629.62/192,563,311.44 = 77,673,582.78/x
  3. Step 3: Cross multiply
    139,538,629.62x = 192,563,311.44 × 77,673,582.78
  4. Step 4: Simplify right side
    139,538,629.62x = 14,957,082,311,525,762
  5. Step 5: Solve for x
    x = 14,957,082,311,525,762/139,538,629.62
  6. Step 6: Final answer
    x = 107,189,545.66

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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.