Home / 12,790,837.32-17,651,586.46-6,989,863.56

Finding the Fourth Proportional to 12,790,837.32, 17,651,586.46 and 6,989,863.56

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Solution

The fourth proportional to 12,790,837.32, 17,651,586.46 and 6,989,863.56 is: 9,646,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,837.32 : 17,651,586.46 = 6,989,863.56 : x
  2. Step 2: Convert to fraction form
    12,790,837.32/17,651,586.46 = 6,989,863.56/x
  3. Step 3: Cross multiply
    12,790,837.32x = 17,651,586.46 × 6,989,863.56
  4. Step 4: Simplify right side
    12,790,837.32x = 123,382,180,972,943.39
  5. Step 5: Solve for x
    x = 123,382,180,972,943.39/12,790,837.32
  6. Step 6: Final answer
    x = 9,646,137.93

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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.