Home / 13,991,136.31-20,970,784.78-8,514,151.41

Finding the Fourth Proportional to 13,991,136.31, 20,970,784.78 and 8,514,151.41

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Solution

The fourth proportional to 13,991,136.31, 20,970,784.78 and 8,514,151.41 is: 12,761,539.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991,136.31 : 20,970,784.78 = 8,514,151.41 : x
  2. Step 2: Convert to fraction form
    13,991,136.31/20,970,784.78 = 8,514,151.41/x
  3. Step 3: Cross multiply
    13,991,136.31x = 20,970,784.78 × 8,514,151.41
  4. Step 4: Simplify right side
    13,991,136.31x = 178,548,436,860,798.59
  5. Step 5: Solve for x
    x = 178,548,436,860,798.59/13,991,136.31
  6. Step 6: Final answer
    x = 12,761,539.37

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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.