Home / 312,665,835.78-469,002,745.08-82,632,933

Finding the Fourth Proportional to 312,665,835.78, 469,002,745.08 and 82,632,933

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Solution

The fourth proportional to 312,665,835.78, 469,002,745.08 and 82,632,933 is: 123,950,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,665,835.78 : 469,002,745.08 = 82,632,933 : x
  2. Step 2: Convert to fraction form
    312,665,835.78/469,002,745.08 = 82,632,933/x
  3. Step 3: Cross multiply
    312,665,835.78x = 469,002,745.08 × 82,632,933
  4. Step 4: Simplify right side
    312,665,835.78x = 38,755,072,411,011,720
  5. Step 5: Solve for x
    x = 38,755,072,411,011,720/312,665,835.78
  6. Step 6: Final answer
    x = 123,950,454.37

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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.