Finding the Fourth Proportional to 21,734,724.92, 29,993,286.06 and 12,441,986.84
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Solution
The fourth proportional to 21,734,724.92, 29,993,286.06 and 12,441,986.84 is: 17,169,578.72
Step by Step Solution
- Step 1: Write the proportion equation
21,734,724.92 : 29,993,286.06 = 12,441,986.84 : x - Step 2: Convert to fraction form
21,734,724.92/29,993,286.06 = 12,441,986.84/x - Step 3: Cross multiply
21,734,724.92x = 29,993,286.06 × 12,441,986.84 - Step 4: Simplify right side
21,734,724.92x = 373,176,070,446,875.44 - Step 5: Solve for x
x = 373,176,070,446,875.44/21,734,724.92 - Step 6: Final answer
x = 17,169,578.72
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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.