Finding the Fourth Proportional to 6,288,623.40, 9,431,840.70 and 2,028,791.64
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Solution
The fourth proportional to 6,288,623.40, 9,431,840.70 and 2,028,791.64 is: 3,042,834.39
Step by Step Solution
- Step 1: Write the proportion equation
6,288,623.40 : 9,431,840.70 = 2,028,791.64 : x - Step 2: Convert to fraction form
6,288,623.40/9,431,840.70 = 2,028,791.64/x - Step 3: Cross multiply
6,288,623.40x = 9,431,840.70 × 2,028,791.64 - Step 4: Simplify right side
6,288,623.40x = 19,135,239,561,971.75 - Step 5: Solve for x
x = 19,135,239,561,971.75/6,288,623.40 - Step 6: Final answer
x = 3,042,834.39
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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.