Finding the Fourth Proportional to 13,613,276.92, 20,419,841.39 and 7,852,276.12
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Solution
The fourth proportional to 13,613,276.92, 20,419,841.39 and 7,852,276.12 is: 11,778,371.50
Step by Step Solution
- Step 1: Write the proportion equation
13,613,276.92 : 20,419,841.39 = 7,852,276.12 : x - Step 2: Convert to fraction form
13,613,276.92/20,419,841.39 = 7,852,276.12/x - Step 3: Cross multiply
13,613,276.92x = 20,419,841.39 × 7,852,276.12 - Step 4: Simplify right side
13,613,276.92x = 160,342,232,920,884.62 - Step 5: Solve for x
x = 160,342,232,920,884.62/13,613,276.92 - Step 6: Final answer
x = 11,778,371.50
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1.5x scale
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.