Finding the Fourth Proportional to 7,062,618.36, 9,745,739.10 and 3,964,431.72
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Solution
The fourth proportional to 7,062,618.36, 9,745,739.10 and 3,964,431.72 is: 5,470,537.31
Step by Step Solution
- Step 1: Write the proportion equation
7,062,618.36 : 9,745,739.10 = 3,964,431.72 : x - Step 2: Convert to fraction form
7,062,618.36/9,745,739.10 = 3,964,431.72/x - Step 3: Cross multiply
7,062,618.36x = 9,745,739.10 × 3,964,431.72 - Step 4: Simplify right side
7,062,618.36x = 38,636,317,222,884.25 - Step 5: Solve for x
x = 38,636,317,222,884.25/7,062,618.36 - Step 6: Final answer
x = 5,470,537.31
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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.