Home / 139,519,352.81-192,535,178.88-76,794,109.70

Finding the Fourth Proportional to 139,519,352.81, 192,535,178.88 and 76,794,109.70

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Solution

The fourth proportional to 139,519,352.81, 192,535,178.88 and 76,794,109.70 is: 105,975,030.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519,352.81 : 192,535,178.88 = 76,794,109.70 : x
  2. Step 2: Convert to fraction form
    139,519,352.81/192,535,178.88 = 76,794,109.70/x
  3. Step 3: Cross multiply
    139,519,352.81x = 192,535,178.88 × 76,794,109.70
  4. Step 4: Simplify right side
    139,519,352.81x = 14,785,567,647,345,144
  5. Step 5: Solve for x
    x = 14,785,567,647,345,144/139,519,352.81
  6. Step 6: Final answer
    x = 105,975,030.34

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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.