Home / 21,790,546.97-30,069,984.38-12,491,450.51

Finding the Fourth Proportional to 21,790,546.97, 30,069,984.38 and 12,491,450.51

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Solution

The fourth proportional to 21,790,546.97, 30,069,984.38 and 12,491,450.51 is: 17,237,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790,546.97 : 30,069,984.38 = 12,491,450.51 : x
  2. Step 2: Convert to fraction form
    21,790,546.97/30,069,984.38 = 12,491,450.51/x
  3. Step 3: Cross multiply
    21,790,546.97x = 30,069,984.38 × 12,491,450.51
  4. Step 4: Simplify right side
    21,790,546.97x = 375,617,721,506,435.88
  5. Step 5: Solve for x
    x = 375,617,721,506,435.88/21,790,546.97
  6. Step 6: Final answer
    x = 17,237,645.39

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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.