Home / 856,458,180.16-1,181,912,288.58-485,180,211.52

Finding the Fourth Proportional to 856,458,180.16, 1,181,912,288.58 and 485,180,211.52

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Solution

The fourth proportional to 856,458,180.16, 1,181,912,288.58 and 485,180,211.52 is: 669,548,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,458,180.16 : 1,181,912,288.58 = 485,180,211.52 : x
  2. Step 2: Convert to fraction form
    856,458,180.16/1,181,912,288.58 = 485,180,211.52/x
  3. Step 3: Cross multiply
    856,458,180.16x = 1,181,912,288.58 × 485,180,211.52
  4. Step 4: Simplify right side
    856,458,180.16x = 573,440,454,171,331,648
  5. Step 5: Solve for x
    x = 573,440,454,171,331,648/856,458,180.16
  6. Step 6: Final answer
    x = 669,548,691.87

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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.