Home / 203,458,688.28-280,764,512.40-115,358,640.24

Finding the Fourth Proportional to 203,458,688.28, 280,764,512.40 and 115,358,640.24

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Solution

The fourth proportional to 203,458,688.28, 280,764,512.40 and 115,358,640.24 is: 159,190,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,458,688.28 : 280,764,512.40 = 115,358,640.24 : x
  2. Step 2: Convert to fraction form
    203,458,688.28/280,764,512.40 = 115,358,640.24/x
  3. Step 3: Cross multiply
    203,458,688.28x = 280,764,512.40 × 115,358,640.24
  4. Step 4: Simplify right side
    203,458,688.28x = 32,388,612,378,110,616
  5. Step 5: Solve for x
    x = 32,388,612,378,110,616/203,458,688.28
  6. Step 6: Final answer
    x = 159,190,116.93

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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.