Finding the Third Proportional to 18,191.78 and 39,764.99
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Solution
The third proportional to 18,191.78 and 39,764.99 is: 86,921.37
Step by Step Solution
- Step 1: Write the proportion equation
18,191.78 : 39,764.99 = 39,764.99 : x - Step 2: Convert to fraction form
18,191.78/39,764.99 = 39,764.99/x - Step 3: Cross multiply
18,191.78x = 39,764.99 × 39,764.99 - Step 4: Simplify right side
18,191.78x = 1,581,254,293.01 - Step 5: Solve for x
x = 1,581,254,293.01/18,191.78 - Step 6: Final answer
x = 86,921.37
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.