Home / 221,443,365.68-305,585,924.04-122,321,979.73

Finding the Fourth Proportional to 221,443,365.68, 305,585,924.04 and 122,321,979.73

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Solution

The fourth proportional to 221,443,365.68, 305,585,924.04 and 122,321,979.73 is: 168,801,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,443,365.68 : 305,585,924.04 = 122,321,979.73 : x
  2. Step 2: Convert to fraction form
    221,443,365.68/305,585,924.04 = 122,321,979.73/x
  3. Step 3: Cross multiply
    221,443,365.68x = 305,585,924.04 × 122,321,979.73
  4. Step 4: Simplify right side
    221,443,365.68x = 37,379,875,204,054,664
  5. Step 5: Solve for x
    x = 37,379,875,204,054,664/221,443,365.68
  6. Step 6: Final answer
    x = 168,801,061.57

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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.