Finding the Fourth Proportional to 18,639,101.37, 27,945,653.14 and 8,258,674.60
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Solution
The fourth proportional to 18,639,101.37, 27,945,653.14 and 8,258,674.60 is: 12,382,252.30
Step by Step Solution
- Step 1: Write the proportion equation
18,639,101.37 : 27,945,653.14 = 8,258,674.60 : x - Step 2: Convert to fraction form
18,639,101.37/27,945,653.14 = 8,258,674.60/x - Step 3: Cross multiply
18,639,101.37x = 27,945,653.14 × 8,258,674.60 - Step 4: Simplify right side
18,639,101.37x = 230,794,055,767,728.25 - Step 5: Solve for x
x = 230,794,055,767,728.25/18,639,101.37 - Step 6: Final answer
x = 12,382,252.30
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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.