Home / 21,056,189.60-31,592,578.80-8,274,519.20

Finding the Fourth Proportional to 21,056,189.60, 31,592,578.80 and 8,274,519.20

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Solution

The fourth proportional to 21,056,189.60, 31,592,578.80 and 8,274,519.20 is: 12,415,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056,189.60 : 31,592,578.80 = 8,274,519.20 : x
  2. Step 2: Convert to fraction form
    21,056,189.60/31,592,578.80 = 8,274,519.20/x
  3. Step 3: Cross multiply
    21,056,189.60x = 31,592,578.80 × 8,274,519.20
  4. Step 4: Simplify right side
    21,056,189.60x = 261,413,399,858,112.97
  5. Step 5: Solve for x
    x = 261,413,399,858,112.97/21,056,189.60
  6. Step 6: Final answer
    x = 12,415,038.28

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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.