Home / 139,519,355.82-192,535,183.02-76,794,112.71

Finding the Fourth Proportional to 139,519,355.82, 192,535,183.02 and 76,794,112.71

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Solution

The fourth proportional to 139,519,355.82, 192,535,183.02 and 76,794,112.71 is: 105,975,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519,355.82 : 192,535,183.02 = 76,794,112.71 : x
  2. Step 2: Convert to fraction form
    139,519,355.82/192,535,183.02 = 76,794,112.71/x
  3. Step 3: Cross multiply
    139,519,355.82x = 192,535,183.02 × 76,794,112.71
  4. Step 4: Simplify right side
    139,519,355.82x = 14,785,568,545,478,358
  5. Step 5: Solve for x
    x = 14,785,568,545,478,358/139,519,355.82
  6. Step 6: Final answer
    x = 105,975,034.49

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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.