Finding the Fourth Proportional to 18,180,813.69, 27,275,550.80 and 6,821,360.73
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Solution
The fourth proportional to 18,180,813.69, 27,275,550.80 and 6,821,360.73 is: 10,233,665.79
Step by Step Solution
- Step 1: Write the proportion equation
18,180,813.69 : 27,275,550.80 = 6,821,360.73 : x - Step 2: Convert to fraction form
18,180,813.69/27,275,550.80 = 6,821,360.73/x - Step 3: Cross multiply
18,180,813.69x = 27,275,550.80 × 6,821,360.73 - Step 4: Simplify right side
18,180,813.69x = 186,056,371,082,133.31 - Step 5: Solve for x
x = 186,056,371,082,133.31/18,180,813.69 - Step 6: Final answer
x = 10,233,665.79
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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.