Home / 417,538,421.72-576,203,003.70-231,916,709.24

Finding the Fourth Proportional to 417,538,421.72, 576,203,003.70 and 231,916,709.24

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Solution

The fourth proportional to 417,538,421.72, 576,203,003.70 and 231,916,709.24 is: 320,045,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,538,421.72 : 576,203,003.70 = 231,916,709.24 : x
  2. Step 2: Convert to fraction form
    417,538,421.72/576,203,003.70 = 231,916,709.24/x
  3. Step 3: Cross multiply
    417,538,421.72x = 576,203,003.70 × 231,916,709.24
  4. Step 4: Simplify right side
    417,538,421.72x = 133,631,104,472,307,568
  5. Step 5: Solve for x
    x = 133,631,104,472,307,568/417,538,421.72
  6. Step 6: Final answer
    x = 320,045,048.60

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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.