Finding the Fourth Proportional to 12,107,268.97, 18,143,908.36 and 6,628,278.31
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Solution
The fourth proportional to 12,107,268.97, 18,143,908.36 and 6,628,278.31 is: 9,933,113.28
Step by Step Solution
- Step 1: Write the proportion equation
12,107,268.97 : 18,143,908.36 = 6,628,278.31 : x - Step 2: Convert to fraction form
12,107,268.97/18,143,908.36 = 6,628,278.31/x - Step 3: Cross multiply
12,107,268.97x = 18,143,908.36 × 6,628,278.31 - Step 4: Simplify right side
12,107,268.97x = 120,262,874,241,215.66 - Step 5: Solve for x
x = 120,262,874,241,215.66/12,107,268.97 - Step 6: Final answer
x = 9,933,113.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.