Finding the Fourth Proportional to 18,164,421.40, 27,284,540.10 and 15,330,069.40
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Solution
The fourth proportional to 18,164,421.40, 27,284,540.10 and 15,330,069.40 is: 23,027,096.99
Step by Step Solution
- Step 1: Write the proportion equation
18,164,421.40 : 27,284,540.10 = 15,330,069.40 : x - Step 2: Convert to fraction form
18,164,421.40/27,284,540.10 = 15,330,069.40/x - Step 3: Cross multiply
18,164,421.40x = 27,284,540.10 × 15,330,069.40 - Step 4: Simplify right side
18,164,421.40x = 418,273,893,280,083 - Step 5: Solve for x
x = 418,273,893,280,083/18,164,421.40 - Step 6: Final answer
x = 23,027,096.99
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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.