Home / 131,171,709.40-196,757,564.10-82,798,768.60

Finding the Fourth Proportional to 131,171,709.40, 196,757,564.10 and 82,798,768.60

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Solution

The fourth proportional to 131,171,709.40, 196,757,564.10 and 82,798,768.60 is: 124,198,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,171,709.40 : 196,757,564.10 = 82,798,768.60 : x
  2. Step 2: Convert to fraction form
    131,171,709.40/196,757,564.10 = 82,798,768.60/x
  3. Step 3: Cross multiply
    131,171,709.40x = 196,757,564.10 × 82,798,768.60
  4. Step 4: Simplify right side
    131,171,709.40x = 16,291,284,020,215,566
  5. Step 5: Solve for x
    x = 16,291,284,020,215,566/131,171,709.40
  6. Step 6: Final answer
    x = 124,198,152.90

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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.