Home / 321,857,244.07-444,320,456.88-215,972,775.21

Finding the Fourth Proportional to 321,857,244.07, 444,320,456.88 and 215,972,775.21

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Solution

The fourth proportional to 321,857,244.07, 444,320,456.88 and 215,972,775.21 is: 298,148,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,857,244.07 : 444,320,456.88 = 215,972,775.21 : x
  2. Step 2: Convert to fraction form
    321,857,244.07/444,320,456.88 = 215,972,775.21/x
  3. Step 3: Cross multiply
    321,857,244.07x = 444,320,456.88 × 215,972,775.21
  4. Step 4: Simplify right side
    321,857,244.07x = 95,961,122,152,727,136
  5. Step 5: Solve for x
    x = 95,961,122,152,727,136/321,857,244.07
  6. Step 6: Final answer
    x = 298,148,088.70

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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.