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Finding the Fourth Proportional to 20,194,876,231.20, 30,292,314,346.80 and 20,194,876,231.20

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Solution

The fourth proportional to 20,194,876,231.20, 30,292,314,346.80 and 20,194,876,231.20 is: 30,292,314,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194,876,231.20 : 30,292,314,346.80 = 20,194,876,231.20 : x
  2. Step 2: Convert to fraction form
    20,194,876,231.20/30,292,314,346.80 = 20,194,876,231.20/x
  3. Step 3: Cross multiply
    20,194,876,231.20x = 30,292,314,346.80 × 20,194,876,231.20
  4. Step 4: Simplify right side
    20,194,876,231.20x = 611,749,538,990,230,077,440
  5. Step 5: Solve for x
    x = 611,749,538,990,230,077,440/20,194,876,231.20
  6. Step 6: Final answer
    x = 30,292,314,346.80

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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.