Home / 323,409,615.60-485,114,423.40-272,391,279.60

Finding the Fourth Proportional to 323,409,615.60, 485,114,423.40 and 272,391,279.60

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Solution

The fourth proportional to 323,409,615.60, 485,114,423.40 and 272,391,279.60 is: 408,586,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,409,615.60 : 485,114,423.40 = 272,391,279.60 : x
  2. Step 2: Convert to fraction form
    323,409,615.60/485,114,423.40 = 272,391,279.60/x
  3. Step 3: Cross multiply
    323,409,615.60x = 485,114,423.40 × 272,391,279.60
  4. Step 4: Simplify right side
    323,409,615.60x = 132,140,938,542,342,192
  5. Step 5: Solve for x
    x = 132,140,938,542,342,192/323,409,615.60
  6. Step 6: Final answer
    x = 408,586,919.40

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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.