Home / 21,127,161.88-29,143,568.10-12,305,573.38

Finding the Fourth Proportional to 21,127,161.88, 29,143,568.10 and 12,305,573.38

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Solution

The fourth proportional to 21,127,161.88, 29,143,568.10 and 12,305,573.38 is: 16,974,751.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,127,161.88 : 29,143,568.10 = 12,305,573.38 : x
  2. Step 2: Convert to fraction form
    21,127,161.88/29,143,568.10 = 12,305,573.38/x
  3. Step 3: Cross multiply
    21,127,161.88x = 29,143,568.10 × 12,305,573.38
  4. Step 4: Simplify right side
    21,127,161.88x = 358,628,315,809,577.25
  5. Step 5: Solve for x
    x = 358,628,315,809,577.25/21,127,161.88
  6. Step 6: Final answer
    x = 16,974,751.17

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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.