Home / 155,400,638.28-214,451,789.86-84,836,248.48

Finding the Fourth Proportional to 155,400,638.28, 214,451,789.86 and 84,836,248.48

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Solution

The fourth proportional to 155,400,638.28, 214,451,789.86 and 84,836,248.48 is: 117,073,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,400,638.28 : 214,451,789.86 = 84,836,248.48 : x
  2. Step 2: Convert to fraction form
    155,400,638.28/214,451,789.86 = 84,836,248.48/x
  3. Step 3: Cross multiply
    155,400,638.28x = 214,451,789.86 × 84,836,248.48
  4. Step 4: Simplify right side
    155,400,638.28x = 18,193,285,331,543,708
  5. Step 5: Solve for x
    x = 18,193,285,331,543,708/155,400,638.28
  6. Step 6: Final answer
    x = 117,073,427.32

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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.