Home / 168,532,486.20-252,987,686.10-130,363,212.60

Finding the Fourth Proportional to 168,532,486.20, 252,987,686.10 and 130,363,212.60

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Solution

The fourth proportional to 168,532,486.20, 252,987,686.10 and 130,363,212.60 is: 195,690,980.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,532,486.20 : 252,987,686.10 = 130,363,212.60 : x
  2. Step 2: Convert to fraction form
    168,532,486.20/252,987,686.10 = 130,363,212.60/x
  3. Step 3: Cross multiply
    168,532,486.20x = 252,987,686.10 × 130,363,212.60
  4. Step 4: Simplify right side
    168,532,486.20x = 32,980,287,508,236,364
  5. Step 5: Solve for x
    x = 32,980,287,508,236,364/168,532,486.20
  6. Step 6: Final answer
    x = 195,690,980.72

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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.