Finding the Fourth Proportional to 10,251,815.40, 15,376,556.70 and 2,679,546.60
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Solution
The fourth proportional to 10,251,815.40, 15,376,556.70 and 2,679,546.60 is: 4,019,015.03
Step by Step Solution
- Step 1: Write the proportion equation
10,251,815.40 : 15,376,556.70 = 2,679,546.60 : x - Step 2: Convert to fraction form
10,251,815.40/15,376,556.70 = 2,679,546.60/x - Step 3: Cross multiply
10,251,815.40x = 15,376,556.70 × 2,679,546.60 - Step 4: Simplify right side
10,251,815.40x = 41,202,200,225,192.22 - Step 5: Solve for x
x = 41,202,200,225,192.22/10,251,815.40 - Step 6: Final answer
x = 4,019,015.03
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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.