Home / 200,802,471.20-301,331,099.36-85,787,878.56

Finding the Fourth Proportional to 200,802,471.20, 301,331,099.36 and 85,787,878.56

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Solution

The fourth proportional to 200,802,471.20, 301,331,099.36 and 85,787,878.56 is: 128,736,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,802,471.20 : 301,331,099.36 = 85,787,878.56 : x
  2. Step 2: Convert to fraction form
    200,802,471.20/301,331,099.36 = 85,787,878.56/x
  3. Step 3: Cross multiply
    200,802,471.20x = 301,331,099.36 × 85,787,878.56
  4. Step 4: Simplify right side
    200,802,471.20x = 25,850,555,758,246,976
  5. Step 5: Solve for x
    x = 25,850,555,758,246,976/200,802,471.20
  6. Step 6: Final answer
    x = 128,736,243.15

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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.