Home / 21,512,920.80-32,256,939.60-8,051,109.60

Finding the Fourth Proportional to 21,512,920.80, 32,256,939.60 and 8,051,109.60

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Solution

The fourth proportional to 21,512,920.80, 32,256,939.60 and 8,051,109.60 is: 12,072,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512,920.80 : 32,256,939.60 = 8,051,109.60 : x
  2. Step 2: Convert to fraction form
    21,512,920.80/32,256,939.60 = 8,051,109.60/x
  3. Step 3: Cross multiply
    21,512,920.80x = 32,256,939.60 × 8,051,109.60
  4. Step 4: Simplify right side
    21,512,920.80x = 259,704,156,080,180.16
  5. Step 5: Solve for x
    x = 259,704,156,080,180.16/21,512,920.80
  6. Step 6: Final answer
    x = 12,072,008.19

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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.