Home / 386,251,272.50-533,040,773.29-221,270,728.46

Finding the Fourth Proportional to 386,251,272.50, 533,040,773.29 and 221,270,728.46

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Solution

The fourth proportional to 386,251,272.50, 533,040,773.29 and 221,270,728.46 is: 305,361,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,251,272.50 : 533,040,773.29 = 221,270,728.46 : x
  2. Step 2: Convert to fraction form
    386,251,272.50/533,040,773.29 = 221,270,728.46/x
  3. Step 3: Cross multiply
    386,251,272.50x = 533,040,773.29 × 221,270,728.46
  4. Step 4: Simplify right side
    386,251,272.50x = 117,946,320,201,541,648
  5. Step 5: Solve for x
    x = 117,946,320,201,541,648/386,251,272.50
  6. Step 6: Final answer
    x = 305,361,635.29

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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.