Home / 171,072,446.20-256,608,669.30-80,205,220.60

Finding the Fourth Proportional to 171,072,446.20, 256,608,669.30 and 80,205,220.60

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Solution

The fourth proportional to 171,072,446.20, 256,608,669.30 and 80,205,220.60 is: 120,307,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,446.20 : 256,608,669.30 = 80,205,220.60 : x
  2. Step 2: Convert to fraction form
    171,072,446.20/256,608,669.30 = 80,205,220.60/x
  3. Step 3: Cross multiply
    171,072,446.20x = 256,608,669.30 × 80,205,220.60
  4. Step 4: Simplify right side
    171,072,446.20x = 20,581,354,929,078,948
  5. Step 5: Solve for x
    x = 20,581,354,929,078,948/171,072,446.20
  6. Step 6: Final answer
    x = 120,307,830.90

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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.