Home / 8,319,138.40-12,457,712.40-5,463,791.20

Finding the Fourth Proportional to 8,319,138.40, 12,457,712.40 and 5,463,791.20

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Solution

The fourth proportional to 8,319,138.40, 12,457,712.40 and 5,463,791.20 is: 8,181,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319,138.40 : 12,457,712.40 = 5,463,791.20 : x
  2. Step 2: Convert to fraction form
    8,319,138.40/12,457,712.40 = 5,463,791.20/x
  3. Step 3: Cross multiply
    8,319,138.40x = 12,457,712.40 × 5,463,791.20
  4. Step 4: Simplify right side
    8,319,138.40x = 68,066,339,383,250.88
  5. Step 5: Solve for x
    x = 68,066,339,383,250.88/8,319,138.40
  6. Step 6: Final answer
    x = 8,181,897.71

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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.