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Finding the Fourth Proportional to 298,996,661.80, 448,494,992.70 and 218,375,093.80

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Solution

The fourth proportional to 298,996,661.80, 448,494,992.70 and 218,375,093.80 is: 327,562,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,996,661.80 : 448,494,992.70 = 218,375,093.80 : x
  2. Step 2: Convert to fraction form
    298,996,661.80/448,494,992.70 = 218,375,093.80/x
  3. Step 3: Cross multiply
    298,996,661.80x = 448,494,992.70 × 218,375,093.80
  4. Step 4: Simplify right side
    298,996,661.80x = 97,940,136,099,692,816
  5. Step 5: Solve for x
    x = 97,940,136,099,692,816/298,996,661.80
  6. Step 6: Final answer
    x = 327,562,640.70

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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.