Home / 556,753,319.34-768,234,171.62-321,758,600.78

Finding the Fourth Proportional to 556,753,319.34, 768,234,171.62 and 321,758,600.78

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Solution

The fourth proportional to 556,753,319.34, 768,234,171.62 and 321,758,600.78 is: 443,977,509.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,753,319.34 : 768,234,171.62 = 321,758,600.78 : x
  2. Step 2: Convert to fraction form
    556,753,319.34/768,234,171.62 = 321,758,600.78/x
  3. Step 3: Cross multiply
    556,753,319.34x = 768,234,171.62 × 321,758,600.78
  4. Step 4: Simplify right side
    556,753,319.34x = 247,185,952,131,833,568
  5. Step 5: Solve for x
    x = 247,185,952,131,833,568/556,753,319.34
  6. Step 6: Final answer
    x = 443,977,509.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.