Home / 20,899,833.36-28,842,126.60-11,481,021.51

Finding the Fourth Proportional to 20,899,833.36, 28,842,126.60 and 11,481,021.51

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Solution

The fourth proportional to 20,899,833.36, 28,842,126.60 and 11,481,021.51 is: 15,844,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899,833.36 : 28,842,126.60 = 11,481,021.51 : x
  2. Step 2: Convert to fraction form
    20,899,833.36/28,842,126.60 = 11,481,021.51/x
  3. Step 3: Cross multiply
    20,899,833.36x = 28,842,126.60 × 11,481,021.51
  4. Step 4: Simplify right side
    20,899,833.36x = 331,137,075,888,743.19
  5. Step 5: Solve for x
    x = 331,137,075,888,743.19/20,899,833.36
  6. Step 6: Final answer
    x = 15,844,005.56

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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.