Home / 512,730,400.41-768,170,891.66-315,650,819.97

Finding the Fourth Proportional to 512,730,400.41, 768,170,891.66 and 315,650,819.97

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Solution

The fourth proportional to 512,730,400.41, 768,170,891.66 and 315,650,819.97 is: 472,906,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,730,400.41 : 768,170,891.66 = 315,650,819.97 : x
  2. Step 2: Convert to fraction form
    512,730,400.41/768,170,891.66 = 315,650,819.97/x
  3. Step 3: Cross multiply
    512,730,400.41x = 768,170,891.66 × 315,650,819.97
  4. Step 4: Simplify right side
    512,730,400.41x = 242,473,771,827,986,784
  5. Step 5: Solve for x
    x = 242,473,771,827,986,784/512,730,400.41
  6. Step 6: Final answer
    x = 472,906,953.90

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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.