Finding the Fourth Proportional to 18,663,165, 28,005,769.98 and 7,879,767.84
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Solution
The fourth proportional to 18,663,165, 28,005,769.98 and 7,879,767.84 is: 11,824,305.56
Step by Step Solution
- Step 1: Write the proportion equation
18,663,165 : 28,005,769.98 = 7,879,767.84 : x - Step 2: Convert to fraction form
18,663,165/28,005,769.98 = 7,879,767.84/x - Step 3: Cross multiply
18,663,165x = 28,005,769.98 × 7,879,767.84 - Step 4: Simplify right side
18,663,165x = 220,678,965,622,841.44 - Step 5: Solve for x
x = 220,678,965,622,841.44/18,663,165 - Step 6: Final answer
x = 11,824,305.56
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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.