Finding the Fourth Proportional to 18,626,554.68, 27,939,839.76 and 8,379,445.44
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Solution
The fourth proportional to 18,626,554.68, 27,939,839.76 and 8,379,445.44 is: 12,569,171.64
Step by Step Solution
- Step 1: Write the proportion equation
18,626,554.68 : 27,939,839.76 = 8,379,445.44 : x - Step 2: Convert to fraction form
18,626,554.68/27,939,839.76 = 8,379,445.44/x - Step 3: Cross multiply
18,626,554.68x = 27,939,839.76 × 8,379,445.44 - Step 4: Simplify right side
18,626,554.68x = 234,120,362,871,262.72 - Step 5: Solve for x
x = 234,120,362,871,262.72/18,626,554.68 - Step 6: Final answer
x = 12,569,171.64
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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.