Home / 21,579,914.03-29,779,932.89-11,790,147.51

Finding the Fourth Proportional to 21,579,914.03, 29,779,932.89 and 11,790,147.51

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Solution

The fourth proportional to 21,579,914.03, 29,779,932.89 and 11,790,147.51 is: 16,270,213.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579,914.03 : 29,779,932.89 = 11,790,147.51 : x
  2. Step 2: Convert to fraction form
    21,579,914.03/29,779,932.89 = 11,790,147.51/x
  3. Step 3: Cross multiply
    21,579,914.03x = 29,779,932.89 × 11,790,147.51
  4. Step 4: Simplify right side
    21,579,914.03x = 351,109,801,640,475.94
  5. Step 5: Solve for x
    x = 351,109,801,640,475.94/21,579,914.03
  6. Step 6: Final answer
    x = 16,270,213.18

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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.