Finding the Fourth Proportional to 18,681,448.49, 27,971,693.53 and 9,687,104.81
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Solution
The fourth proportional to 18,681,448.49, 27,971,693.53 and 9,687,104.81 is: 14,504,481.65
Step by Step Solution
- Step 1: Write the proportion equation
18,681,448.49 : 27,971,693.53 = 9,687,104.81 : x - Step 2: Convert to fraction form
18,681,448.49/27,971,693.53 = 9,687,104.81/x - Step 3: Cross multiply
18,681,448.49x = 27,971,693.53 × 9,687,104.81 - Step 4: Simplify right side
18,681,448.49x = 270,964,726,750,014.88 - Step 5: Solve for x
x = 270,964,726,750,014.88/18,681,448.49 - Step 6: Final answer
x = 14,504,481.65
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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.