Home / 22,691,281.70-31,313,930.77-12,378,004.79

Finding the Fourth Proportional to 22,691,281.70, 31,313,930.77 and 12,378,004.79

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Solution

The fourth proportional to 22,691,281.70, 31,313,930.77 and 12,378,004.79 is: 17,081,625.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691,281.70 : 31,313,930.77 = 12,378,004.79 : x
  2. Step 2: Convert to fraction form
    22,691,281.70/31,313,930.77 = 12,378,004.79/x
  3. Step 3: Cross multiply
    22,691,281.70x = 31,313,930.77 × 12,378,004.79
  4. Step 4: Simplify right side
    22,691,281.70x = 387,603,984,939,163.75
  5. Step 5: Solve for x
    x = 387,603,984,939,163.75/22,691,281.70
  6. Step 6: Final answer
    x = 17,081,625.89

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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.