Home / 99,856,107.20-149,784,160.80-82,835,998.40

Finding the Fourth Proportional to 99,856,107.20, 149,784,160.80 and 82,835,998.40

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Solution

The fourth proportional to 99,856,107.20, 149,784,160.80 and 82,835,998.40 is: 124,253,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856,107.20 : 149,784,160.80 = 82,835,998.40 : x
  2. Step 2: Convert to fraction form
    99,856,107.20/149,784,160.80 = 82,835,998.40/x
  3. Step 3: Cross multiply
    99,856,107.20x = 149,784,160.80 × 82,835,998.40
  4. Step 4: Simplify right side
    99,856,107.20x = 12,407,520,504,374,144
  5. Step 5: Solve for x
    x = 12,407,520,504,374,144/99,856,107.20
  6. Step 6: Final answer
    x = 124,253,997.60

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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.