Home / 12,790,868.40-17,651,629.26-6,989,894.64

Finding the Fourth Proportional to 12,790,868.40, 17,651,629.26 and 6,989,894.64

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Solution

The fourth proportional to 12,790,868.40, 17,651,629.26 and 6,989,894.64 is: 9,646,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,868.40 : 17,651,629.26 = 6,989,894.64 : x
  2. Step 2: Convert to fraction form
    12,790,868.40/17,651,629.26 = 6,989,894.64/x
  3. Step 3: Cross multiply
    12,790,868.40x = 17,651,629.26 × 6,989,894.64
  4. Step 4: Simplify right side
    12,790,868.40x = 123,383,028,751,741.17
  5. Step 5: Solve for x
    x = 123,383,028,751,741.17/12,790,868.40
  6. Step 6: Final answer
    x = 9,646,180.77

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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.