Home / 485,055,231.70-727,589,068.35-161,939,103.70

Finding the Fourth Proportional to 485,055,231.70, 727,589,068.35 and 161,939,103.70

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Solution

The fourth proportional to 485,055,231.70, 727,589,068.35 and 161,939,103.70 is: 242,910,732.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,055,231.70 : 727,589,068.35 = 161,939,103.70 : x
  2. Step 2: Convert to fraction form
    485,055,231.70/727,589,068.35 = 161,939,103.70/x
  3. Step 3: Cross multiply
    485,055,231.70x = 727,589,068.35 × 161,939,103.70
  4. Step 4: Simplify right side
    485,055,231.70x = 117,825,121,590,517,040
  5. Step 5: Solve for x
    x = 117,825,121,590,517,040/485,055,231.70
  6. Step 6: Final answer
    x = 242,910,732.41

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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.