Finding the Fourth Proportional to 6,789,931.26, 9,370,218.69 and 3,889,575.06
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Solution
The fourth proportional to 6,789,931.26, 9,370,218.69 and 3,889,575.06 is: 5,367,678.63
Step by Step Solution
- Step 1: Write the proportion equation
6,789,931.26 : 9,370,218.69 = 3,889,575.06 : x - Step 2: Convert to fraction form
6,789,931.26/9,370,218.69 = 3,889,575.06/x - Step 3: Cross multiply
6,789,931.26x = 9,370,218.69 × 3,889,575.06 - Step 4: Simplify right side
6,789,931.26x = 36,446,168,923,369.87 - Step 5: Solve for x
x = 36,446,168,923,369.87/6,789,931.26 - Step 6: Final answer
x = 5,367,678.63
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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.