Home / 323,975,270.60-485,962,905.90-81,638,174.60

Finding the Fourth Proportional to 323,975,270.60, 485,962,905.90 and 81,638,174.60

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Solution

The fourth proportional to 323,975,270.60, 485,962,905.90 and 81,638,174.60 is: 122,457,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,975,270.60 : 485,962,905.90 = 81,638,174.60 : x
  2. Step 2: Convert to fraction form
    323,975,270.60/485,962,905.90 = 81,638,174.60/x
  3. Step 3: Cross multiply
    323,975,270.60x = 485,962,905.90 × 81,638,174.60
  4. Step 4: Simplify right side
    323,975,270.60x = 39,673,124,560,987,568
  5. Step 5: Solve for x
    x = 39,673,124,560,987,568/323,975,270.60
  6. Step 6: Final answer
    x = 122,457,261.90

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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.