Home / 485,309,711.88-727,892,811.56-178,530,080.22

Finding the Fourth Proportional to 485,309,711.88, 727,892,811.56 and 178,530,080.22

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Solution

The fourth proportional to 485,309,711.88, 727,892,811.56 and 178,530,080.22 is: 267,768,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,309,711.88 : 727,892,811.56 = 178,530,080.22 : x
  2. Step 2: Convert to fraction form
    485,309,711.88/727,892,811.56 = 178,530,080.22/x
  3. Step 3: Cross multiply
    485,309,711.88x = 727,892,811.56 × 178,530,080.22
  4. Step 4: Simplify right side
    485,309,711.88x = 129,950,762,039,368,128
  5. Step 5: Solve for x
    x = 129,950,762,039,368,128/485,309,711.88
  6. Step 6: Final answer
    x = 267,768,723.47

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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.