Finding the Fourth Proportional to 7,988,657.88, 11,977,993.97 and 3,375,272.28
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Solution
The fourth proportional to 7,988,657.88, 11,977,993.97 and 3,375,272.28 is: 5,060,798.90
Step by Step Solution
- Step 1: Write the proportion equation
7,988,657.88 : 11,977,993.97 = 3,375,272.28 : x - Step 2: Convert to fraction form
7,988,657.88/11,977,993.97 = 3,375,272.28/x - Step 3: Cross multiply
7,988,657.88x = 11,977,993.97 × 3,375,272.28 - Step 4: Simplify right side
7,988,657.88x = 40,428,990,990,270.33 - Step 5: Solve for x
x = 40,428,990,990,270.33/7,988,657.88 - Step 6: Final answer
x = 5,060,798.90
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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.