Finding the Fourth Proportional to 9,207,375.68, 12,702,147.36 and 8,780,473.28
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Solution
The fourth proportional to 9,207,375.68, 12,702,147.36 and 8,780,473.28 is: 12,113,208.95
Step by Step Solution
- Step 1: Write the proportion equation
9,207,375.68 : 12,702,147.36 = 8,780,473.28 : x - Step 2: Convert to fraction form
9,207,375.68/12,702,147.36 = 8,780,473.28/x - Step 3: Cross multiply
9,207,375.68x = 12,702,147.36 × 8,780,473.28 - Step 4: Simplify right side
9,207,375.68x = 111,530,865,493,102.53 - Step 5: Solve for x
x = 111,530,865,493,102.53/9,207,375.68 - Step 6: Final answer
x = 12,113,208.95
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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.