Home / 457,121,881.72-685,864,508.82-146,277,391.96

Finding the Fourth Proportional to 457,121,881.72, 685,864,508.82 and 146,277,391.96

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Solution

The fourth proportional to 457,121,881.72, 685,864,508.82 and 146,277,391.96 is: 219,474,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,121,881.72 : 685,864,508.82 = 146,277,391.96 : x
  2. Step 2: Convert to fraction form
    457,121,881.72/685,864,508.82 = 146,277,391.96/x
  3. Step 3: Cross multiply
    457,121,881.72x = 685,864,508.82 × 146,277,391.96
  4. Step 4: Simplify right side
    457,121,881.72x = 100,326,471,588,116,032
  5. Step 5: Solve for x
    x = 100,326,471,588,116,032/457,121,881.72
  6. Step 6: Final answer
    x = 219,474,226.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.