Finding the Fourth Proportional to 15,407,198.75, 21,261,947.84 and 8,531,533.19
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Solution
The fourth proportional to 15,407,198.75, 21,261,947.84 and 8,531,533.19 is: 11,773,523.31
Step by Step Solution
- Step 1: Write the proportion equation
15,407,198.75 : 21,261,947.84 = 8,531,533.19 : x - Step 2: Convert to fraction form
15,407,198.75/21,261,947.84 = 8,531,533.19/x - Step 3: Cross multiply
15,407,198.75x = 21,261,947.84 × 8,531,533.19 - Step 4: Simplify right side
15,407,198.75x = 181,397,013,532,041.44 - Step 5: Solve for x
x = 181,397,013,532,041.44/15,407,198.75 - Step 6: Final answer
x = 11,773,523.31
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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.