Home / 20,704,666.40-31,056,999.60-5,560,128.80

Finding the Fourth Proportional to 20,704,666.40, 31,056,999.60 and 5,560,128.80

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Solution

The fourth proportional to 20,704,666.40, 31,056,999.60 and 5,560,128.80 is: 8,340,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,666.40 : 31,056,999.60 = 5,560,128.80 : x
  2. Step 2: Convert to fraction form
    20,704,666.40/31,056,999.60 = 5,560,128.80/x
  3. Step 3: Cross multiply
    20,704,666.40x = 31,056,999.60 × 5,560,128.80
  4. Step 4: Simplify right side
    20,704,666.40x = 172,680,917,917,548.47
  5. Step 5: Solve for x
    x = 172,680,917,917,548.47/20,704,666.40
  6. Step 6: Final answer
    x = 8,340,193.20

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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.