Home / 28,858,651.35-39,824,977.68-15,627,851.34

Finding the Fourth Proportional to 28,858,651.35, 39,824,977.68 and 15,627,851.34

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Solution

The fourth proportional to 28,858,651.35, 39,824,977.68 and 15,627,851.34 is: 21,566,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858,651.35 : 39,824,977.68 = 15,627,851.34 : x
  2. Step 2: Convert to fraction form
    28,858,651.35/39,824,977.68 = 15,627,851.34/x
  3. Step 3: Cross multiply
    28,858,651.35x = 39,824,977.68 × 15,627,851.34
  4. Step 4: Simplify right side
    28,858,651.35x = 622,378,830,801,858.12
  5. Step 5: Solve for x
    x = 622,378,830,801,858.12/28,858,651.35
  6. Step 6: Final answer
    x = 21,566,455.87

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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.