Finding the Fourth Proportional to 161,138,131.68, 222,370,653.60 and 87,799,273.68
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Solution
The fourth proportional to 161,138,131.68, 222,370,653.60 and 87,799,273.68 is: 121,163,015.05
Step by Step Solution
- Step 1: Write the proportion equation
161,138,131.68 : 222,370,653.60 = 87,799,273.68 : x - Step 2: Convert to fraction form
161,138,131.68/222,370,653.60 = 87,799,273.68/x - Step 3: Cross multiply
161,138,131.68x = 222,370,653.60 × 87,799,273.68 - Step 4: Simplify right side
161,138,131.68x = 19,523,981,873,826,880 - Step 5: Solve for x
x = 19,523,981,873,826,880/161,138,131.68 - Step 6: Final answer
x = 121,163,015.05
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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.