Finding the Fourth Proportional to 3,809,530.36, 5,257,135.38 and 2,090,678.68
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Solution
The fourth proportional to 3,809,530.36, 5,257,135.38 and 2,090,678.68 is: 2,885,127.51
Step by Step Solution
- Step 1: Write the proportion equation
3,809,530.36 : 5,257,135.38 = 2,090,678.68 : x - Step 2: Convert to fraction form
3,809,530.36/5,257,135.38 = 2,090,678.68/x - Step 3: Cross multiply
3,809,530.36x = 5,257,135.38 × 2,090,678.68 - Step 4: Simplify right side
3,809,530.36x = 10,990,980,856,839.70 - Step 5: Solve for x
x = 10,990,980,856,839.70/3,809,530.36 - Step 6: Final answer
x = 2,885,127.51
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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.