Finding the Fourth Proportional to 222,382,349.40, 306,887,112.47 and 121,910,608.13
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Solution
The fourth proportional to 222,382,349.40, 306,887,112.47 and 121,910,608.13 is: 168,236,348.83
Step by Step Solution
- Step 1: Write the proportion equation
222,382,349.40 : 306,887,112.47 = 121,910,608.13 : x - Step 2: Convert to fraction form
222,382,349.40/306,887,112.47 = 121,910,608.13/x - Step 3: Cross multiply
222,382,349.40x = 306,887,112.47 × 121,910,608.13 - Step 4: Simplify right side
222,382,349.40x = 37,412,794,507,867,848 - Step 5: Solve for x
x = 37,412,794,507,867,848/222,382,349.40 - Step 6: Final answer
x = 168,236,348.83
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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.