Home / 168,048,005.20-252,072,007.80-40,397,189.20

Finding the Fourth Proportional to 168,048,005.20, 252,072,007.80 and 40,397,189.20

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Solution

The fourth proportional to 168,048,005.20, 252,072,007.80 and 40,397,189.20 is: 60,595,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,048,005.20 : 252,072,007.80 = 40,397,189.20 : x
  2. Step 2: Convert to fraction form
    168,048,005.20/252,072,007.80 = 40,397,189.20/x
  3. Step 3: Cross multiply
    168,048,005.20x = 252,072,007.80 × 40,397,189.20
  4. Step 4: Simplify right side
    168,048,005.20x = 10,183,000,591,120,476
  5. Step 5: Solve for x
    x = 10,183,000,591,120,476/168,048,005.20
  6. Step 6: Final answer
    x = 60,595,783.80

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Similar ratio
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1.5x scale

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.