Home / 379,620,076.80-569,430,115.20-120,861,453.90

Finding the Fourth Proportional to 379,620,076.80, 569,430,115.20 and 120,861,453.90

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Solution

The fourth proportional to 379,620,076.80, 569,430,115.20 and 120,861,453.90 is: 181,292,180.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,620,076.80 : 569,430,115.20 = 120,861,453.90 : x
  2. Step 2: Convert to fraction form
    379,620,076.80/569,430,115.20 = 120,861,453.90/x
  3. Step 3: Cross multiply
    379,620,076.80x = 569,430,115.20 × 120,861,453.90
  4. Step 4: Simplify right side
    379,620,076.80x = 68,822,151,617,516,496
  5. Step 5: Solve for x
    x = 68,822,151,617,516,496/379,620,076.80
  6. Step 6: Final answer
    x = 181,292,180.85

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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.