Finding the Fourth Proportional to 18,639,100.37, 27,945,651.65 and 8,258,673.60
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Solution
The fourth proportional to 18,639,100.37, 27,945,651.65 and 8,258,673.60 is: 12,382,250.80
Step by Step Solution
- Step 1: Write the proportion equation
18,639,100.37 : 27,945,651.65 = 8,258,673.60 : x - Step 2: Convert to fraction form
18,639,100.37/27,945,651.65 = 8,258,673.60/x - Step 3: Cross multiply
18,639,100.37x = 27,945,651.65 × 8,258,673.60 - Step 4: Simplify right side
18,639,100.37x = 230,794,015,475,358.06 - Step 5: Solve for x
x = 230,794,015,475,358.06/18,639,100.37 - Step 6: Final answer
x = 12,382,250.80
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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.