Finding the Fourth Proportional to 18,448,414.20, 27,672,621.30 and 17,403,319.80
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Solution
The fourth proportional to 18,448,414.20, 27,672,621.30 and 17,403,319.80 is: 26,104,979.70
Step by Step Solution
- Step 1: Write the proportion equation
18,448,414.20 : 27,672,621.30 = 17,403,319.80 : x - Step 2: Convert to fraction form
18,448,414.20/27,672,621.30 = 17,403,319.80/x - Step 3: Cross multiply
18,448,414.20x = 27,672,621.30 × 17,403,319.80 - Step 4: Simplify right side
18,448,414.20x = 481,595,478,188,191.75 - Step 5: Solve for x
x = 481,595,478,188,191.75/18,448,414.20 - Step 6: Final answer
x = 26,104,979.70
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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.