Finding the Fourth Proportional to 7,268,330.40, 10,902,495.60 and 3,479,863.20
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Solution
The fourth proportional to 7,268,330.40, 10,902,495.60 and 3,479,863.20 is: 5,219,794.80
Step by Step Solution
- Step 1: Write the proportion equation
7,268,330.40 : 10,902,495.60 = 3,479,863.20 : x - Step 2: Convert to fraction form
7,268,330.40/10,902,495.60 = 3,479,863.20/x - Step 3: Cross multiply
7,268,330.40x = 10,902,495.60 × 3,479,863.20 - Step 4: Simplify right side
7,268,330.40x = 37,939,193,226,601.92 - Step 5: Solve for x
x = 37,939,193,226,601.92/7,268,330.40 - Step 6: Final answer
x = 5,219,794.80
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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.