Finding the Fourth Proportional to 267,424,728.18, 368,990,861.33 and 154,392,261.30
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Solution
The fourth proportional to 267,424,728.18, 368,990,861.33 and 154,392,261.30 is: 213,029,415.29
Step by Step Solution
- Step 1: Write the proportion equation
267,424,728.18 : 368,990,861.33 = 154,392,261.30 : x - Step 2: Convert to fraction form
267,424,728.18/368,990,861.33 = 154,392,261.30/x - Step 3: Cross multiply
267,424,728.18x = 368,990,861.33 × 154,392,261.30 - Step 4: Simplify right side
267,424,728.18x = 56,969,333,477,928,464 - Step 5: Solve for x
x = 56,969,333,477,928,464/267,424,728.18 - Step 6: Final answer
x = 213,029,415.29
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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.