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Finding the Fourth Proportional to 323,675,999.70, 485,513,999.55 and 294,021,591.90

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Solution

The fourth proportional to 323,675,999.70, 485,513,999.55 and 294,021,591.90 is: 441,032,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,675,999.70 : 485,513,999.55 = 294,021,591.90 : x
  2. Step 2: Convert to fraction form
    323,675,999.70/485,513,999.55 = 294,021,591.90/x
  3. Step 3: Cross multiply
    323,675,999.70x = 485,513,999.55 × 294,021,591.90
  4. Step 4: Simplify right side
    323,675,999.70x = 142,751,599,037,426,880
  5. Step 5: Solve for x
    x = 142,751,599,037,426,880/323,675,999.70
  6. Step 6: Final answer
    x = 441,032,387.85

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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.