Finding the Fourth Proportional to 7,310,192.18, 10,965,651.15 and 1,918,858.10
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Solution
The fourth proportional to 7,310,192.18, 10,965,651.15 and 1,918,858.10 is: 2,878,382.40
Step by Step Solution
- Step 1: Write the proportion equation
7,310,192.18 : 10,965,651.15 = 1,918,858.10 : x - Step 2: Convert to fraction form
7,310,192.18/10,965,651.15 = 1,918,858.10/x - Step 3: Cross multiply
7,310,192.18x = 10,965,651.15 × 1,918,858.10 - Step 4: Simplify right side
7,310,192.18x = 21,041,528,530,951.82 - Step 5: Solve for x
x = 21,041,528,530,951.82/7,310,192.18 - Step 6: Final answer
x = 2,878,382.40
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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.