Finding the Fourth Proportional to 18,441,311.40, 27,661,707.90 and 8,343,916.20
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Solution
The fourth proportional to 18,441,311.40, 27,661,707.90 and 8,343,916.20 is: 12,515,757.02
Step by Step Solution
- Step 1: Write the proportion equation
18,441,311.40 : 27,661,707.90 = 8,343,916.20 : x - Step 2: Convert to fraction form
18,441,311.40/27,661,707.90 = 8,343,916.20/x - Step 3: Cross multiply
18,441,311.40x = 27,661,707.90 × 8,343,916.20 - Step 4: Simplify right side
18,441,311.40x = 230,806,972,666,477.97 - Step 5: Solve for x
x = 230,806,972,666,477.97/18,441,311.40 - Step 6: Final answer
x = 12,515,757.02
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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.