Home / 20,504,878.58-28,283,400.38-13,151,063.75

Finding the Fourth Proportional to 20,504,878.58, 28,283,400.38 and 13,151,063.75

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Solution

The fourth proportional to 20,504,878.58, 28,283,400.38 and 13,151,063.75 is: 18,139,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504,878.58 : 28,283,400.38 = 13,151,063.75 : x
  2. Step 2: Convert to fraction form
    20,504,878.58/28,283,400.38 = 13,151,063.75/x
  3. Step 3: Cross multiply
    20,504,878.58x = 28,283,400.38 × 13,151,063.75
  4. Step 4: Simplify right side
    20,504,878.58x = 371,956,801,355,614.88
  5. Step 5: Solve for x
    x = 371,956,801,355,614.88/20,504,878.58
  6. Step 6: Final answer
    x = 18,139,917.28

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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.