Finding the Fourth Proportional to 20,631,193.39, 28,471,687.74 and 11,338,594.84
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Solution
The fourth proportional to 20,631,193.39, 28,471,687.74 and 11,338,594.84 is: 15,647,613.09
Step by Step Solution
- Step 1: Write the proportion equation
20,631,193.39 : 28,471,687.74 = 11,338,594.84 : x - Step 2: Convert to fraction form
20,631,193.39/28,471,687.74 = 11,338,594.84/x - Step 3: Cross multiply
20,631,193.39x = 28,471,687.74 × 11,338,594.84 - Step 4: Simplify right side
20,631,193.39x = 322,828,931,694,855.25 - Step 5: Solve for x
x = 322,828,931,694,855.25/20,631,193.39 - Step 6: Final answer
x = 15,647,613.09
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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.