Finding the Fourth Proportional to 38,647,807.70, 57,971,711.55 and 18,492,415.70
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Solution
The fourth proportional to 38,647,807.70, 57,971,711.55 and 18,492,415.70 is: 27,738,623.55
Step by Step Solution
- Step 1: Write the proportion equation
38,647,807.70 : 57,971,711.55 = 18,492,415.70 : x - Step 2: Convert to fraction form
38,647,807.70/57,971,711.55 = 18,492,415.70/x - Step 3: Cross multiply
38,647,807.70x = 57,971,711.55 × 18,492,415.70 - Step 4: Simplify right side
38,647,807.70x = 1,072,036,988,823,091.25 - Step 5: Solve for x
x = 1,072,036,988,823,091.25/38,647,807.70 - Step 6: Final answer
x = 27,738,623.55
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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.