Home / 20,186,630,998.60-30,307,209,421.20-11,801,129,747.80

Finding the Fourth Proportional to 20,186,630,998.60, 30,307,209,421.20 and 11,801,129,747.80

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Solution

The fourth proportional to 20,186,630,998.60, 30,307,209,421.20 and 11,801,129,747.80 is: 17,717,632,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,630,998.60 : 30,307,209,421.20 = 11,801,129,747.80 : x
  2. Step 2: Convert to fraction form
    20,186,630,998.60/30,307,209,421.20 = 11,801,129,747.80/x
  3. Step 3: Cross multiply
    20,186,630,998.60x = 30,307,209,421.20 × 11,801,129,747.80
  4. Step 4: Simplify right side
    20,186,630,998.60x = 357,659,310,673,327,751,168
  5. Step 5: Solve for x
    x = 357,659,310,673,327,751,168/20,186,630,998.60
  6. Step 6: Final answer
    x = 17,717,632,560.78

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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.