Finding the Fourth Proportional to 6,629,032.20, 9,147,974.12 and 3,728,421.92
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Solution
The fourth proportional to 6,629,032.20, 9,147,974.12 and 3,728,421.92 is: 5,145,171.45
Step by Step Solution
- Step 1: Write the proportion equation
6,629,032.20 : 9,147,974.12 = 3,728,421.92 : x - Step 2: Convert to fraction form
6,629,032.20/9,147,974.12 = 3,728,421.92/x - Step 3: Cross multiply
6,629,032.20x = 9,147,974.12 × 3,728,421.92 - Step 4: Simplify right side
6,629,032.20x = 34,107,507,232,600.71 - Step 5: Solve for x
x = 34,107,507,232,600.71/6,629,032.20 - Step 6: Final answer
x = 5,145,171.45
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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.