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Finding the Fourth Proportional to 408,771,630.30, 613,157,445.45 and 245,512,955.10

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Solution

The fourth proportional to 408,771,630.30, 613,157,445.45 and 245,512,955.10 is: 368,269,432.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,771,630.30 : 613,157,445.45 = 245,512,955.10 : x
  2. Step 2: Convert to fraction form
    408,771,630.30/613,157,445.45 = 245,512,955.10/x
  3. Step 3: Cross multiply
    408,771,630.30x = 613,157,445.45 × 245,512,955.10
  4. Step 4: Simplify right side
    408,771,630.30x = 150,538,096,373,996,544
  5. Step 5: Solve for x
    x = 150,538,096,373,996,544/408,771,630.30
  6. Step 6: Final answer
    x = 368,269,432.65

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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.