Home / 21,979,169.48-30,327,243.37-12,683,348.30

Finding the Fourth Proportional to 21,979,169.48, 30,327,243.37 and 12,683,348.30

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Solution

The fourth proportional to 21,979,169.48, 30,327,243.37 and 12,683,348.30 is: 17,500,706.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979,169.48 : 30,327,243.37 = 12,683,348.30 : x
  2. Step 2: Convert to fraction form
    21,979,169.48/30,327,243.37 = 12,683,348.30/x
  3. Step 3: Cross multiply
    21,979,169.48x = 30,327,243.37 × 12,683,348.30
  4. Step 4: Simplify right side
    21,979,169.48x = 384,650,990,608,867.44
  5. Step 5: Solve for x
    x = 384,650,990,608,867.44/21,979,169.48
  6. Step 6: Final answer
    x = 17,500,706.34

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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.