Home / 328,100,939.20-492,340,365.60-123,775,652.80

Finding the Fourth Proportional to 328,100,939.20, 492,340,365.60 and 123,775,652.80

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Solution

The fourth proportional to 328,100,939.20, 492,340,365.60 and 123,775,652.80 is: 185,734,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,100,939.20 : 492,340,365.60 = 123,775,652.80 : x
  2. Step 2: Convert to fraction form
    328,100,939.20/492,340,365.60 = 123,775,652.80/x
  3. Step 3: Cross multiply
    328,100,939.20x = 492,340,365.60 × 123,775,652.80
  4. Step 4: Simplify right side
    328,100,939.20x = 60,939,750,151,930,664
  5. Step 5: Solve for x
    x = 60,939,750,151,930,664/328,100,939.20
  6. Step 6: Final answer
    x = 185,734,762.91

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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.