Finding the Fourth Proportional to 278,305,770.73, 384,062,652.09 and 154,546,444.21
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Solution
The fourth proportional to 278,305,770.73, 384,062,652.09 and 154,546,444.21 is: 213,274,475.33
Step by Step Solution
- Step 1: Write the proportion equation
278,305,770.73 : 384,062,652.09 = 154,546,444.21 : x - Step 2: Convert to fraction form
278,305,770.73/384,062,652.09 = 154,546,444.21/x - Step 3: Cross multiply
278,305,770.73x = 384,062,652.09 × 154,546,444.21 - Step 4: Simplify right side
278,305,770.73x = 59,355,517,234,371,824 - Step 5: Solve for x
x = 59,355,517,234,371,824/278,305,770.73 - Step 6: Final answer
x = 213,274,475.33
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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.