Home / 81,505,508,270.94-122,314,108,262.99-28,446,541,382.78

Finding the Fourth Proportional to 81,505,508,270.94, 122,314,108,262.99 and 28,446,541,382.78

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Solution

The fourth proportional to 81,505,508,270.94, 122,314,108,262.99 and 28,446,541,382.78 is: 42,689,303,044.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505,508,270.94 : 122,314,108,262.99 = 28,446,541,382.78 : x
  2. Step 2: Convert to fraction form
    81,505,508,270.94/122,314,108,262.99 = 28,446,541,382.78/x
  3. Step 3: Cross multiply
    81,505,508,270.94x = 122,314,108,262.99 × 28,446,541,382.78
  4. Step 4: Simplify right side
    81,505,508,270.94x = 3,479,413,342,400,978,354,176
  5. Step 5: Solve for x
    x = 3,479,413,342,400,978,354,176/81,505,508,270.94
  6. Step 6: Final answer
    x = 42,689,303,044.83

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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.