Home / 221,245,359.40-331,584,603.90-196,869,932.20

Finding the Fourth Proportional to 221,245,359.40, 331,584,603.90 and 196,869,932.20

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Solution

The fourth proportional to 221,245,359.40, 331,584,603.90 and 196,869,932.20 is: 295,052,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,245,359.40 : 331,584,603.90 = 196,869,932.20 : x
  2. Step 2: Convert to fraction form
    221,245,359.40/331,584,603.90 = 196,869,932.20/x
  3. Step 3: Cross multiply
    221,245,359.40x = 331,584,603.90 × 196,869,932.20
  4. Step 4: Simplify right side
    221,245,359.40x = 65,279,038,488,356,848
  5. Step 5: Solve for x
    x = 65,279,038,488,356,848/221,245,359.40
  6. Step 6: Final answer
    x = 295,052,690.21

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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.