Home / 20,186,630,994.60-30,307,209,415.20-11,801,129,743.80

Finding the Fourth Proportional to 20,186,630,994.60, 30,307,209,415.20 and 11,801,129,743.80

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Solution

The fourth proportional to 20,186,630,994.60, 30,307,209,415.20 and 11,801,129,743.80 is: 17,717,632,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,630,994.60 : 30,307,209,415.20 = 11,801,129,743.80 : x
  2. Step 2: Convert to fraction form
    20,186,630,994.60/30,307,209,415.20 = 11,801,129,743.80/x
  3. Step 3: Cross multiply
    20,186,630,994.60x = 30,307,209,415.20 × 11,801,129,743.80
  4. Step 4: Simplify right side
    20,186,630,994.60x = 357,659,310,481,292,132,352
  5. Step 5: Solve for x
    x = 357,659,310,481,292,132,352/20,186,630,994.60
  6. Step 6: Final answer
    x = 17,717,632,554.78

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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.