Home / 131,313,139.80-196,969,709.70-40,464,576.60

Finding the Fourth Proportional to 131,313,139.80, 196,969,709.70 and 40,464,576.60

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Solution

The fourth proportional to 131,313,139.80, 196,969,709.70 and 40,464,576.60 is: 60,696,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,313,139.80 : 196,969,709.70 = 40,464,576.60 : x
  2. Step 2: Convert to fraction form
    131,313,139.80/196,969,709.70 = 40,464,576.60/x
  3. Step 3: Cross multiply
    131,313,139.80x = 196,969,709.70 × 40,464,576.60
  4. Step 4: Simplify right side
    131,313,139.80x = 7,970,295,906,035,413
  5. Step 5: Solve for x
    x = 7,970,295,906,035,413/131,313,139.80
  6. Step 6: Final answer
    x = 60,696,864.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.