Home / 12,270,946,276.80-18,406,419,415.20-8,515,996,747.20

Finding the Fourth Proportional to 12,270,946,276.80, 18,406,419,415.20 and 8,515,996,747.20

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Solution

The fourth proportional to 12,270,946,276.80, 18,406,419,415.20 and 8,515,996,747.20 is: 12,773,995,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270,946,276.80 : 18,406,419,415.20 = 8,515,996,747.20 : x
  2. Step 2: Convert to fraction form
    12,270,946,276.80/18,406,419,415.20 = 8,515,996,747.20/x
  3. Step 3: Cross multiply
    12,270,946,276.80x = 18,406,419,415.20 × 8,515,996,747.20
  4. Step 4: Simplify right side
    12,270,946,276.80x = 156,749,007,867,442,135,040
  5. Step 5: Solve for x
    x = 156,749,007,867,442,135,040/12,270,946,276.80
  6. Step 6: Final answer
    x = 12,773,995,120.80

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Double scale
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Similar ratio
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1.5x scale

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.