Home / 323,638,216.40-485,457,324.60-318,263,445.20

Finding the Fourth Proportional to 323,638,216.40, 485,457,324.60 and 318,263,445.20

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Solution

The fourth proportional to 323,638,216.40, 485,457,324.60 and 318,263,445.20 is: 477,395,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,638,216.40 : 485,457,324.60 = 318,263,445.20 : x
  2. Step 2: Convert to fraction form
    323,638,216.40/485,457,324.60 = 318,263,445.20/x
  3. Step 3: Cross multiply
    323,638,216.40x = 485,457,324.60 × 318,263,445.20
  4. Step 4: Simplify right side
    323,638,216.40x = 154,503,320,624,770,720
  5. Step 5: Solve for x
    x = 154,503,320,624,770,720/323,638,216.40
  6. Step 6: Final answer
    x = 477,395,167.80

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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.