Finding the Fourth Proportional to 7,721,694.58, 11,582,489.82 and 1,964,378.80
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Solution
The fourth proportional to 7,721,694.58, 11,582,489.82 and 1,964,378.80 is: 2,946,554.96
Step by Step Solution
- Step 1: Write the proportion equation
7,721,694.58 : 11,582,489.82 = 1,964,378.80 : x - Step 2: Convert to fraction form
7,721,694.58/11,582,489.82 = 1,964,378.80/x - Step 3: Cross multiply
7,721,694.58x = 11,582,489.82 × 1,964,378.80 - Step 4: Simplify right side
7,721,694.58x = 22,752,397,453,623.82 - Step 5: Solve for x
x = 22,752,397,453,623.82/7,721,694.58 - Step 6: Final answer
x = 2,946,554.96
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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.