Home / 20,971,705.44-28,939,107.60-11,678,573.28

Finding the Fourth Proportional to 20,971,705.44, 28,939,107.60 and 11,678,573.28

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Solution

The fourth proportional to 20,971,705.44, 28,939,107.60 and 11,678,573.28 is: 16,115,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,971,705.44 : 28,939,107.60 = 11,678,573.28 : x
  2. Step 2: Convert to fraction form
    20,971,705.44/28,939,107.60 = 11,678,573.28/x
  3. Step 3: Cross multiply
    20,971,705.44x = 28,939,107.60 × 11,678,573.28
  4. Step 4: Simplify right side
    20,971,705.44x = 337,967,488,764,404.94
  5. Step 5: Solve for x
    x = 337,967,488,764,404.94/20,971,705.44
  6. Step 6: Final answer
    x = 16,115,403.19

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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.