Finding the Fourth Proportional to 11,728,888.38, 16,176,269.70 and 8,255,724.60
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Solution
The fourth proportional to 11,728,888.38, 16,176,269.70 and 8,255,724.60 is: 11,386,145.33
Step by Step Solution
- Step 1: Write the proportion equation
11,728,888.38 : 16,176,269.70 = 8,255,724.60 : x - Step 2: Convert to fraction form
11,728,888.38/16,176,269.70 = 8,255,724.60/x - Step 3: Cross multiply
11,728,888.38x = 16,176,269.70 × 8,255,724.60 - Step 4: Simplify right side
11,728,888.38x = 133,546,827,698,524.61 - Step 5: Solve for x
x = 133,546,827,698,524.61/11,728,888.38 - Step 6: Final answer
x = 11,386,145.33
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1.5x scale
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.