Finding the Fourth Proportional to 222,415,853.97, 306,933,871.85 and 123,296,350.19
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Solution
The fourth proportional to 222,415,853.97, 306,933,871.85 and 123,296,350.19 is: 170,148,959.58
Step by Step Solution
- Step 1: Write the proportion equation
222,415,853.97 : 306,933,871.85 = 123,296,350.19 : x - Step 2: Convert to fraction form
222,415,853.97/306,933,871.85 = 123,296,350.19/x - Step 3: Cross multiply
222,415,853.97x = 306,933,871.85 × 123,296,350.19 - Step 4: Simplify right side
222,415,853.97x = 37,843,826,146,639,040 - Step 5: Solve for x
x = 37,843,826,146,639,040/222,415,853.97 - Step 6: Final answer
x = 170,148,959.58
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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.