Home / 395,101,550,359.72-545,240,139,443.60-223,823,481,849.66

Finding the Fourth Proportional to 395,101,550,359.72, 545,240,139,443.60 and 223,823,481,849.66

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Solution

The fourth proportional to 395,101,550,359.72, 545,240,139,443.60 and 223,823,481,849.66 is: 308,876,404,922.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,101,550,359.72 : 545,240,139,443.60 = 223,823,481,849.66 : x
  2. Step 2: Convert to fraction form
    395,101,550,359.72/545,240,139,443.60 = 223,823,481,849.66/x
  3. Step 3: Cross multiply
    395,101,550,359.72x = 545,240,139,443.60 × 223,823,481,849.66
  4. Step 4: Simplify right side
    395,101,550,359.72x = 122,037,546,454,460,689,022,976
  5. Step 5: Solve for x
    x = 122,037,546,454,460,689,022,976/395,101,550,359.72
  6. Step 6: Final answer
    x = 308,876,404,922.61

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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.