Home / 378,096,010.40-567,144,015.60-321,660,912.80

Finding the Fourth Proportional to 378,096,010.40, 567,144,015.60 and 321,660,912.80

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Solution

The fourth proportional to 378,096,010.40, 567,144,015.60 and 321,660,912.80 is: 482,491,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,096,010.40 : 567,144,015.60 = 321,660,912.80 : x
  2. Step 2: Convert to fraction form
    378,096,010.40/567,144,015.60 = 321,660,912.80/x
  3. Step 3: Cross multiply
    378,096,010.40x = 567,144,015.60 × 321,660,912.80
  4. Step 4: Simplify right side
    378,096,010.40x = 182,428,061,746,953,440
  5. Step 5: Solve for x
    x = 182,428,061,746,953,440/378,096,010.40
  6. Step 6: Final answer
    x = 482,491,369.20

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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.