Home / 20,396,514,142.20-30,594,771,213.30-12,111,136,375.80

Finding the Fourth Proportional to 20,396,514,142.20, 30,594,771,213.30 and 12,111,136,375.80

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Solution

The fourth proportional to 20,396,514,142.20, 30,594,771,213.30 and 12,111,136,375.80 is: 18,166,704,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396,514,142.20 : 30,594,771,213.30 = 12,111,136,375.80 : x
  2. Step 2: Convert to fraction form
    20,396,514,142.20/30,594,771,213.30 = 12,111,136,375.80/x
  3. Step 3: Cross multiply
    20,396,514,142.20x = 30,594,771,213.30 × 12,111,136,375.80
  4. Step 4: Simplify right side
    20,396,514,142.20x = 370,537,446,550,676,307,968
  5. Step 5: Solve for x
    x = 370,537,446,550,676,307,968/20,396,514,142.20
  6. Step 6: Final answer
    x = 18,166,704,563.70

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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.