Finding the Fourth Proportional to 6,639,717.62, 9,959,929.56 and 2,091,122.12
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Solution
The fourth proportional to 6,639,717.62, 9,959,929.56 and 2,091,122.12 is: 3,136,794.40
Step by Step Solution
- Step 1: Write the proportion equation
6,639,717.62 : 9,959,929.56 = 2,091,122.12 : x - Step 2: Convert to fraction form
6,639,717.62/9,959,929.56 = 2,091,122.12/x - Step 3: Cross multiply
6,639,717.62x = 9,959,929.56 × 2,091,122.12 - Step 4: Simplify right side
6,639,717.62x = 20,827,429,016,557.87 - Step 5: Solve for x
x = 20,827,429,016,557.87/6,639,717.62 - Step 6: Final answer
x = 3,136,794.40
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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.