Finding the Fourth Proportional to 18,639,101.88, 27,945,653.90 and 8,258,675.09
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Solution
The fourth proportional to 18,639,101.88, 27,945,653.90 and 8,258,675.09 is: 12,382,253.02
Step by Step Solution
- Step 1: Write the proportion equation
18,639,101.88 : 27,945,653.90 = 8,258,675.09 : x - Step 2: Convert to fraction form
18,639,101.88/27,945,653.90 = 8,258,675.09/x - Step 3: Cross multiply
18,639,101.88x = 27,945,653.90 × 8,258,675.09 - Step 4: Simplify right side
18,639,101.88x = 230,794,075,556,669.69 - Step 5: Solve for x
x = 230,794,075,556,669.69/18,639,101.88 - Step 6: Final answer
x = 12,382,253.02
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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.