Home / 139,519,352.64-192,535,178.72-76,794,109.56

Finding the Fourth Proportional to 139,519,352.64, 192,535,178.72 and 76,794,109.56

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Solution

The fourth proportional to 139,519,352.64, 192,535,178.72 and 76,794,109.56 is: 105,975,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519,352.64 : 192,535,178.72 = 76,794,109.56 : x
  2. Step 2: Convert to fraction form
    139,519,352.64/192,535,178.72 = 76,794,109.56/x
  3. Step 3: Cross multiply
    139,519,352.64x = 192,535,178.72 × 76,794,109.56
  4. Step 4: Simplify right side
    139,519,352.64x = 14,785,567,608,777,860
  5. Step 5: Solve for x
    x = 14,785,567,608,777,860/139,519,352.64
  6. Step 6: Final answer
    x = 105,975,030.19

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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.