Home / 400,148,644.73-552,193,269.59-221,540,493.29

Finding the Fourth Proportional to 400,148,644.73, 552,193,269.59 and 221,540,493.29

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Solution

The fourth proportional to 400,148,644.73, 552,193,269.59 and 221,540,493.29 is: 305,719,314.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,148,644.73 : 552,193,269.59 = 221,540,493.29 : x
  2. Step 2: Convert to fraction form
    400,148,644.73/552,193,269.59 = 221,540,493.29/x
  3. Step 3: Cross multiply
    400,148,644.73x = 552,193,269.59 × 221,540,493.29
  4. Step 4: Simplify right side
    400,148,644.73x = 122,333,169,334,179,440
  5. Step 5: Solve for x
    x = 122,333,169,334,179,440/400,148,644.73
  6. Step 6: Final answer
    x = 305,719,314.43

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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.