Home / 168,140,112.20-252,399,125.10-129,970,838.60

Finding the Fourth Proportional to 168,140,112.20, 252,399,125.10 and 129,970,838.60

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Solution

The fourth proportional to 168,140,112.20, 252,399,125.10 and 129,970,838.60 is: 195,102,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,140,112.20 : 252,399,125.10 = 129,970,838.60 : x
  2. Step 2: Convert to fraction form
    168,140,112.20/252,399,125.10 = 129,970,838.60/x
  3. Step 3: Cross multiply
    168,140,112.20x = 252,399,125.10 × 129,970,838.60
  4. Step 4: Simplify right side
    168,140,112.20x = 32,804,525,951,153,308
  5. Step 5: Solve for x
    x = 32,804,525,951,153,308/168,140,112.20
  6. Step 6: Final answer
    x = 195,102,319.86

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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.