Home / 485,055,187.20-727,589,001.60-161,939,059.20

Finding the Fourth Proportional to 485,055,187.20, 727,589,001.60 and 161,939,059.20

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Solution

The fourth proportional to 485,055,187.20, 727,589,001.60 and 161,939,059.20 is: 242,910,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,055,187.20 : 727,589,001.60 = 161,939,059.20 : x
  2. Step 2: Convert to fraction form
    485,055,187.20/727,589,001.60 = 161,939,059.20/x
  3. Step 3: Cross multiply
    485,055,187.20x = 727,589,001.60 × 161,939,059.20
  4. Step 4: Simplify right side
    485,055,187.20x = 117,825,078,403,371,296
  5. Step 5: Solve for x
    x = 117,825,078,403,371,296/485,055,187.20
  6. Step 6: Final answer
    x = 242,910,665.66

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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.