Finding the Fourth Proportional to 18,321,853.48, 27,479,047.74 and 6,958,318.12
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Solution
The fourth proportional to 18,321,853.48, 27,479,047.74 and 6,958,318.12 is: 10,436,059.65
Step by Step Solution
- Step 1: Write the proportion equation
18,321,853.48 : 27,479,047.74 = 6,958,318.12 : x - Step 2: Convert to fraction form
18,321,853.48/27,479,047.74 = 6,958,318.12/x - Step 3: Cross multiply
18,321,853.48x = 27,479,047.74 × 6,958,318.12 - Step 4: Simplify right side
18,321,853.48x = 191,207,955,809,587.03 - Step 5: Solve for x
x = 191,207,955,809,587.03/18,321,853.48 - Step 6: Final answer
x = 10,436,059.65
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1.5x scale
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.