Home / 168,140,107.20-252,399,117.60-129,970,833.60

Finding the Fourth Proportional to 168,140,107.20, 252,399,117.60 and 129,970,833.60

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Solution

The fourth proportional to 168,140,107.20, 252,399,117.60 and 129,970,833.60 is: 195,102,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,140,107.20 : 252,399,117.60 = 129,970,833.60 : x
  2. Step 2: Convert to fraction form
    168,140,107.20/252,399,117.60 = 129,970,833.60/x
  3. Step 3: Cross multiply
    168,140,107.20x = 252,399,117.60 × 129,970,833.60
  4. Step 4: Simplify right side
    168,140,107.20x = 32,804,523,714,376,428
  5. Step 5: Solve for x
    x = 32,804,523,714,376,428/168,140,107.20
  6. Step 6: Final answer
    x = 195,102,312.36

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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.