Home / 469,274,906.70-648,136,847.79-309,055,114.17

Finding the Fourth Proportional to 469,274,906.70, 648,136,847.79 and 309,055,114.17

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Solution

The fourth proportional to 469,274,906.70, 648,136,847.79 and 309,055,114.17 is: 426,850,028.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,274,906.70 : 648,136,847.79 = 309,055,114.17 : x
  2. Step 2: Convert to fraction form
    469,274,906.70/648,136,847.79 = 309,055,114.17/x
  3. Step 3: Cross multiply
    469,274,906.70x = 648,136,847.79 × 309,055,114.17
  4. Step 4: Simplify right side
    469,274,906.70x = 200,310,007,491,522,368
  5. Step 5: Solve for x
    x = 200,310,007,491,522,368/469,274,906.70
  6. Step 6: Final answer
    x = 426,850,028.91

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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.