Home / 21,150,920.34-29,188,198.53-11,985,310.26

Finding the Fourth Proportional to 21,150,920.34, 29,188,198.53 and 11,985,310.26

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Solution

The fourth proportional to 21,150,920.34, 29,188,198.53 and 11,985,310.26 is: 16,539,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150,920.34 : 29,188,198.53 = 11,985,310.26 : x
  2. Step 2: Convert to fraction form
    21,150,920.34/29,188,198.53 = 11,985,310.26/x
  3. Step 3: Cross multiply
    21,150,920.34x = 29,188,198.53 × 11,985,310.26
  4. Step 4: Simplify right side
    21,150,920.34x = 349,829,615,312,525.94
  5. Step 5: Solve for x
    x = 349,829,615,312,525.94/21,150,920.34
  6. Step 6: Final answer
    x = 16,539,687.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.