Home / 18,955,942.12-26,131,992.42-13,513,986.28

Finding the Fourth Proportional to 18,955,942.12, 26,131,992.42 and 13,513,986.28

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Solution

The fourth proportional to 18,955,942.12, 26,131,992.42 and 13,513,986.28 is: 18,629,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955,942.12 : 26,131,992.42 = 13,513,986.28 : x
  2. Step 2: Convert to fraction form
    18,955,942.12/26,131,992.42 = 13,513,986.28/x
  3. Step 3: Cross multiply
    18,955,942.12x = 26,131,992.42 × 13,513,986.28
  4. Step 4: Simplify right side
    18,955,942.12x = 353,147,387,032,944
  5. Step 5: Solve for x
    x = 353,147,387,032,944/18,955,942.12
  6. Step 6: Final answer
    x = 18,629,904.27

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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.