Finding the Fourth Proportional to 21,668,960.40, 29,902,517.28 and 11,879,069.76
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Solution
The fourth proportional to 21,668,960.40, 29,902,517.28 and 11,879,069.76 is: 16,392,760.99
Step by Step Solution
- Step 1: Write the proportion equation
21,668,960.40 : 29,902,517.28 = 11,879,069.76 : x - Step 2: Convert to fraction form
21,668,960.40/29,902,517.28 = 11,879,069.76/x - Step 3: Cross multiply
21,668,960.40x = 29,902,517.28 × 11,879,069.76 - Step 4: Simplify right side
21,668,960.40x = 355,214,088,768,725.44 - Step 5: Solve for x
x = 355,214,088,768,725.44/21,668,960.40 - Step 6: Final answer
x = 16,392,760.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.