Home / 306,021,550.24-422,324,679.36-172,101,606.40

Finding the Fourth Proportional to 306,021,550.24, 422,324,679.36 and 172,101,606.40

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Solution

The fourth proportional to 306,021,550.24, 422,324,679.36 and 172,101,606.40 is: 237,508,618.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,021,550.24 : 422,324,679.36 = 172,101,606.40 : x
  2. Step 2: Convert to fraction form
    306,021,550.24/422,324,679.36 = 172,101,606.40/x
  3. Step 3: Cross multiply
    306,021,550.24x = 422,324,679.36 × 172,101,606.40
  4. Step 4: Simplify right side
    306,021,550.24x = 72,682,755,740,220,928
  5. Step 5: Solve for x
    x = 72,682,755,740,220,928/306,021,550.24
  6. Step 6: Final answer
    x = 237,508,618.86

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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.