Home / 538,647,311.81-743,332,954.44-291,128,666.06

Finding the Fourth Proportional to 538,647,311.81, 743,332,954.44 and 291,128,666.06

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Solution

The fourth proportional to 538,647,311.81, 743,332,954.44 and 291,128,666.06 is: 401,757,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,647,311.81 : 743,332,954.44 = 291,128,666.06 : x
  2. Step 2: Convert to fraction form
    538,647,311.81/743,332,954.44 = 291,128,666.06/x
  3. Step 3: Cross multiply
    538,647,311.81x = 743,332,954.44 × 291,128,666.06
  4. Step 4: Simplify right side
    538,647,311.81x = 216,405,531,459,383,648
  5. Step 5: Solve for x
    x = 216,405,531,459,383,648/538,647,311.81
  6. Step 6: Final answer
    x = 401,757,377.63

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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.