Finding the Fourth Proportional to 18,180,831.61, 27,275,577.63 and 6,821,378.65
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Solution
The fourth proportional to 18,180,831.61, 27,275,577.63 and 6,821,378.65 is: 10,233,692.66
Step by Step Solution
- Step 1: Write the proportion equation
18,180,831.61 : 27,275,577.63 = 6,821,378.65 : x - Step 2: Convert to fraction form
18,180,831.61/27,275,577.63 = 6,821,378.65/x - Step 3: Cross multiply
18,180,831.61x = 27,275,577.63 × 6,821,378.65 - Step 4: Simplify right side
18,180,831.61x = 186,057,042,911,699.59 - Step 5: Solve for x
x = 186,057,042,911,699.59/18,180,831.61 - Step 6: Final answer
x = 10,233,692.66
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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.