Home / 519,538,174.12-716,690,859.46-321,236,279.38

Finding the Fourth Proportional to 519,538,174.12, 716,690,859.46 and 321,236,279.38

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Solution

The fourth proportional to 519,538,174.12, 716,690,859.46 and 321,236,279.38 is: 443,137,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,538,174.12 : 716,690,859.46 = 321,236,279.38 : x
  2. Step 2: Convert to fraction form
    519,538,174.12/716,690,859.46 = 321,236,279.38/x
  3. Step 3: Cross multiply
    519,538,174.12x = 716,690,859.46 × 321,236,279.38
  4. Step 4: Simplify right side
    519,538,174.12x = 230,227,105,158,584,896
  5. Step 5: Solve for x
    x = 230,227,105,158,584,896/519,538,174.12
  6. Step 6: Final answer
    x = 443,137,995.68

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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.