Finding the Fourth Proportional to 7,721,685.05, 11,582,475.60 and 1,964,369.26
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Solution
The fourth proportional to 7,721,685.05, 11,582,475.60 and 1,964,369.26 is: 2,946,540.66
Step by Step Solution
- Step 1: Write the proportion equation
7,721,685.05 : 11,582,475.60 = 1,964,369.26 : x - Step 2: Convert to fraction form
7,721,685.05/11,582,475.60 = 1,964,369.26/x - Step 3: Cross multiply
7,721,685.05x = 11,582,475.60 × 1,964,369.26 - Step 4: Simplify right side
7,721,685.05x = 22,752,258,965,427.68 - Step 5: Solve for x
x = 22,752,258,965,427.68/7,721,685.05 - Step 6: Final answer
x = 2,946,540.66
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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.