Finding the Fourth Proportional to 18,976,919.76, 26,168,575.20 and 16,232,691.60
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Solution
The fourth proportional to 18,976,919.76, 26,168,575.20 and 16,232,691.60 is: 22,384,370.92
Step by Step Solution
- Step 1: Write the proportion equation
18,976,919.76 : 26,168,575.20 = 16,232,691.60 : x - Step 2: Convert to fraction form
18,976,919.76/26,168,575.20 = 16,232,691.60/x - Step 3: Cross multiply
18,976,919.76x = 26,168,575.20 × 16,232,691.60 - Step 4: Simplify right side
18,976,919.76x = 424,786,410,833,008.31 - Step 5: Solve for x
x = 424,786,410,833,008.31/18,976,919.76 - Step 6: Final answer
x = 22,384,370.92
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1.5x scale
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.