Home / 168,260,512.80-252,390,769.20-139,539,079.20

Finding the Fourth Proportional to 168,260,512.80, 252,390,769.20 and 139,539,079.20

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Solution

The fourth proportional to 168,260,512.80, 252,390,769.20 and 139,539,079.20 is: 209,308,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,260,512.80 : 252,390,769.20 = 139,539,079.20 : x
  2. Step 2: Convert to fraction form
    168,260,512.80/252,390,769.20 = 139,539,079.20/x
  3. Step 3: Cross multiply
    168,260,512.80x = 252,390,769.20 × 139,539,079.20
  4. Step 4: Simplify right side
    168,260,512.80x = 35,218,375,532,747,716
  5. Step 5: Solve for x
    x = 35,218,375,532,747,716/168,260,512.80
  6. Step 6: Final answer
    x = 209,308,618.80

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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.