Finding the Fourth Proportional to 18,668,207.70, 27,969,133.95 and 16,013,999.70
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Solution
The fourth proportional to 18,668,207.70, 27,969,133.95 and 16,013,999.70 is: 23,992,539.07
Step by Step Solution
- Step 1: Write the proportion equation
18,668,207.70 : 27,969,133.95 = 16,013,999.70 : x - Step 2: Convert to fraction form
18,668,207.70/27,969,133.95 = 16,013,999.70/x - Step 3: Cross multiply
18,668,207.70x = 27,969,133.95 × 16,013,999.70 - Step 4: Simplify right side
18,668,207.70x = 447,897,702,684,559.81 - Step 5: Solve for x
x = 447,897,702,684,559.81/18,668,207.70 - Step 6: Final answer
x = 23,992,539.07
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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.