Finding the Fourth Proportional to 18,145,330.20, 27,190,001.70 and 15,737,880.60
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Solution
The fourth proportional to 18,145,330.20, 27,190,001.70 and 15,737,880.60 is: 23,582,541.38
Step by Step Solution
- Step 1: Write the proportion equation
18,145,330.20 : 27,190,001.70 = 15,737,880.60 : x - Step 2: Convert to fraction form
18,145,330.20/27,190,001.70 = 15,737,880.60/x - Step 3: Cross multiply
18,145,330.20x = 27,190,001.70 × 15,737,880.60 - Step 4: Simplify right side
18,145,330.20x = 427,913,000,268,397 - Step 5: Solve for x
x = 427,913,000,268,397/18,145,330.20 - Step 6: Final answer
x = 23,582,541.38
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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.