Finding the Fourth Proportional to 18,147,746.70, 27,221,620.05 and 13,668,770.70
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Solution
The fourth proportional to 18,147,746.70, 27,221,620.05 and 13,668,770.70 is: 20,503,156.05
Step by Step Solution
- Step 1: Write the proportion equation
18,147,746.70 : 27,221,620.05 = 13,668,770.70 : x - Step 2: Convert to fraction form
18,147,746.70/27,221,620.05 = 13,668,770.70/x - Step 3: Cross multiply
18,147,746.70x = 27,221,620.05 × 13,668,770.70 - Step 4: Simplify right side
18,147,746.70x = 372,086,082,545,972.50 - Step 5: Solve for x
x = 372,086,082,545,972.50/18,147,746.70 - Step 6: Final answer
x = 20,503,156.05
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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.