Home / 221,335,331.60-332,002,997.40-77,728,163.60

Finding the Fourth Proportional to 221,335,331.60, 332,002,997.40 and 77,728,163.60

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Solution

The fourth proportional to 221,335,331.60, 332,002,997.40 and 77,728,163.60 is: 116,592,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,335,331.60 : 332,002,997.40 = 77,728,163.60 : x
  2. Step 2: Convert to fraction form
    221,335,331.60/332,002,997.40 = 77,728,163.60/x
  3. Step 3: Cross multiply
    221,335,331.60x = 332,002,997.40 × 77,728,163.60
  4. Step 4: Simplify right side
    221,335,331.60x = 25,805,983,297,597,572
  5. Step 5: Solve for x
    x = 25,805,983,297,597,572/221,335,331.60
  6. Step 6: Final answer
    x = 116,592,245.40

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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.