Finding the Fourth Proportional to 11,985,425.36, 17,976,169.68 and 5,160,160.76
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Solution
The fourth proportional to 11,985,425.36, 17,976,169.68 and 5,160,160.76 is: 7,739,393.69
Step by Step Solution
- Step 1: Write the proportion equation
11,985,425.36 : 17,976,169.68 = 5,160,160.76 : x - Step 2: Convert to fraction form
11,985,425.36/17,976,169.68 = 5,160,160.76/x - Step 3: Cross multiply
11,985,425.36x = 17,976,169.68 × 5,160,160.76 - Step 4: Simplify right side
11,985,425.36x = 92,759,925,397,837.75 - Step 5: Solve for x
x = 92,759,925,397,837.75/11,985,425.36 - Step 6: Final answer
x = 7,739,393.69
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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.