Home / 221,499,990.80-305,673,194.28-122,383,018.64

Finding the Fourth Proportional to 221,499,990.80, 305,673,194.28 and 122,383,018.64

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Solution

The fourth proportional to 221,499,990.80, 305,673,194.28 and 122,383,018.64 is: 168,890,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,499,990.80 : 305,673,194.28 = 122,383,018.64 : x
  2. Step 2: Convert to fraction form
    221,499,990.80/305,673,194.28 = 122,383,018.64/x
  3. Step 3: Cross multiply
    221,499,990.80x = 305,673,194.28 × 122,383,018.64
  4. Step 4: Simplify right side
    221,499,990.80x = 37,409,208,233,317,576
  5. Step 5: Solve for x
    x = 37,409,208,233,317,576/221,499,990.80
  6. Step 6: Final answer
    x = 168,890,337.64

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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.