Finding the Fourth Proportional to 39,964,258.96, 55,150,676.04 and 21,629,544.28
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Solution
The fourth proportional to 39,964,258.96, 55,150,676.04 and 21,629,544.28 is: 29,848,770.39
Step by Step Solution
- Step 1: Write the proportion equation
39,964,258.96 : 55,150,676.04 = 21,629,544.28 : x - Step 2: Convert to fraction form
39,964,258.96/55,150,676.04 = 21,629,544.28/x - Step 3: Cross multiply
39,964,258.96x = 55,150,676.04 × 21,629,544.28 - Step 4: Simplify right side
39,964,258.96x = 1,192,883,989,479,115 - Step 5: Solve for x
x = 1,192,883,989,479,115/39,964,258.96 - Step 6: Final answer
x = 29,848,770.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.