Home / 400,193,253.59-552,283,949.97-221,577,140.39

Finding the Fourth Proportional to 400,193,253.59, 552,283,949.97 and 221,577,140.39

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Solution

The fourth proportional to 400,193,253.59, 552,283,949.97 and 221,577,140.39 is: 305,786,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,193,253.59 : 552,283,949.97 = 221,577,140.39 : x
  2. Step 2: Convert to fraction form
    400,193,253.59/552,283,949.97 = 221,577,140.39/x
  3. Step 3: Cross multiply
    400,193,253.59x = 552,283,949.97 × 221,577,140.39
  4. Step 4: Simplify right side
    400,193,253.59x = 122,373,498,314,885,008
  5. Step 5: Solve for x
    x = 122,373,498,314,885,008/400,193,253.59
  6. Step 6: Final answer
    x = 305,786,010.18

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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.