Finding the Fourth Proportional to 7,779,541.20, 11,668,889.97 and 2,388,192.54
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Solution
The fourth proportional to 7,779,541.20, 11,668,889.97 and 2,388,192.54 is: 3,582,159.32
Step by Step Solution
- Step 1: Write the proportion equation
7,779,541.20 : 11,668,889.97 = 2,388,192.54 : x - Step 2: Convert to fraction form
7,779,541.20/11,668,889.97 = 2,388,192.54/x - Step 3: Cross multiply
7,779,541.20x = 11,668,889.97 × 2,388,192.54 - Step 4: Simplify right side
7,779,541.20x = 27,867,555,976,434.82 - Step 5: Solve for x
x = 27,867,555,976,434.82/7,779,541.20 - Step 6: Final answer
x = 3,582,159.32
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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.