Finding the Fourth Proportional to 18,284,707.10, 27,427,293.94 and 12,603,405.98
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Solution
The fourth proportional to 18,284,707.10, 27,427,293.94 and 12,603,405.98 is: 18,905,269.77
Step by Step Solution
- Step 1: Write the proportion equation
18,284,707.10 : 27,427,293.94 = 12,603,405.98 : x - Step 2: Convert to fraction form
18,284,707.10/27,427,293.94 = 12,603,405.98/x - Step 3: Cross multiply
18,284,707.10x = 27,427,293.94 × 12,603,405.98 - Step 4: Simplify right side
18,284,707.10x = 345,677,320,458,613.81 - Step 5: Solve for x
x = 345,677,320,458,613.81/18,284,707.10 - Step 6: Final answer
x = 18,905,269.77
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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.