Home / 612,178,323.20-919,224,078.60-353,897,997.20

Finding the Fourth Proportional to 612,178,323.20, 919,224,078.60 and 353,897,997.20

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Solution

The fourth proportional to 612,178,323.20, 919,224,078.60 and 353,897,997.20 is: 531,399,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,178,323.20 : 919,224,078.60 = 353,897,997.20 : x
  2. Step 2: Convert to fraction form
    612,178,323.20/919,224,078.60 = 353,897,997.20/x
  3. Step 3: Cross multiply
    612,178,323.20x = 919,224,078.60 × 353,897,997.20
  4. Step 4: Simplify right side
    612,178,323.20x = 325,311,560,394,555,392
  5. Step 5: Solve for x
    x = 325,311,560,394,555,392/612,178,323.20
  6. Step 6: Final answer
    x = 531,399,999.10

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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.