Home / 20,395,019.87-28,144,265.37-11,102,396.51

Finding the Fourth Proportional to 20,395,019.87, 28,144,265.37 and 11,102,396.51

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Solution

The fourth proportional to 20,395,019.87, 28,144,265.37 and 11,102,396.51 is: 15,320,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395,019.87 : 28,144,265.37 = 11,102,396.51 : x
  2. Step 2: Convert to fraction form
    20,395,019.87/28,144,265.37 = 11,102,396.51/x
  3. Step 3: Cross multiply
    20,395,019.87x = 28,144,265.37 × 11,102,396.51
  4. Step 4: Simplify right side
    20,395,019.87x = 312,468,793,553,268.06
  5. Step 5: Solve for x
    x = 312,468,793,553,268.06/20,395,019.87
  6. Step 6: Final answer
    x = 15,320,837.90

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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.