Home / 311,494,515.03-467,206,080.71-81,485,800.47

Finding the Fourth Proportional to 311,494,515.03, 467,206,080.71 and 81,485,800.47

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Solution

The fourth proportional to 311,494,515.03, 467,206,080.71 and 81,485,800.47 is: 122,219,363.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,494,515.03 : 467,206,080.71 = 81,485,800.47 : x
  2. Step 2: Convert to fraction form
    311,494,515.03/467,206,080.71 = 81,485,800.47/x
  3. Step 3: Cross multiply
    311,494,515.03x = 467,206,080.71 × 81,485,800.47
  4. Step 4: Simplify right side
    311,494,515.03x = 38,070,661,470,698,344
  5. Step 5: Solve for x
    x = 38,070,661,470,698,344/311,494,515.03
  6. Step 6: Final answer
    x = 122,219,363.85

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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.