Finding the Fourth Proportional to 6,503,378.20, 8,975,213.26 and 3,603,678.68
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Solution
The fourth proportional to 6,503,378.20, 8,975,213.26 and 3,603,678.68 is: 4,973,382.09
Step by Step Solution
- Step 1: Write the proportion equation
6,503,378.20 : 8,975,213.26 = 3,603,678.68 : x - Step 2: Convert to fraction form
6,503,378.20/8,975,213.26 = 3,603,678.68/x - Step 3: Cross multiply
6,503,378.20x = 8,975,213.26 × 3,603,678.68 - Step 4: Simplify right side
6,503,378.20x = 32,343,784,673,515.30 - Step 5: Solve for x
x = 32,343,784,673,515.30/6,503,378.20 - Step 6: Final answer
x = 4,973,382.09
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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.