Finding the Fourth Proportional to 6,979,623.36, 9,631,742.11 and 3,882,080.08
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Solution
The fourth proportional to 6,979,623.36, 9,631,742.11 and 3,882,080.08 is: 5,357,193.69
Step by Step Solution
- Step 1: Write the proportion equation
6,979,623.36 : 9,631,742.11 = 3,882,080.08 : x - Step 2: Convert to fraction form
6,979,623.36/9,631,742.11 = 3,882,080.08/x - Step 3: Cross multiply
6,979,623.36x = 9,631,742.11 × 3,882,080.08 - Step 4: Simplify right side
6,979,623.36x = 37,391,194,205,099.34 - Step 5: Solve for x
x = 37,391,194,205,099.34/6,979,623.36 - Step 6: Final answer
x = 5,357,193.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.