Home / 400,684,156.16-552,942,902.76-222,079,433.36

Finding the Fourth Proportional to 400,684,156.16, 552,942,902.76 and 222,079,433.36

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Solution

The fourth proportional to 400,684,156.16, 552,942,902.76 and 222,079,433.36 is: 306,468,934.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,684,156.16 : 552,942,902.76 = 222,079,433.36 : x
  2. Step 2: Convert to fraction form
    400,684,156.16/552,942,902.76 = 222,079,433.36/x
  3. Step 3: Cross multiply
    400,684,156.16x = 552,942,902.76 × 222,079,433.36
  4. Step 4: Simplify right side
    400,684,156.16x = 122,797,246,525,374,384
  5. Step 5: Solve for x
    x = 122,797,246,525,374,384/400,684,156.16
  6. Step 6: Final answer
    x = 306,468,934.79

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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.