Finding the Fourth Proportional to 6,805,105.65, 10,207,658.48 and 6,285,474.45
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Solution
The fourth proportional to 6,805,105.65, 10,207,658.48 and 6,285,474.45 is: 9,428,211.68
Step by Step Solution
- Step 1: Write the proportion equation
6,805,105.65 : 10,207,658.48 = 6,285,474.45 : x - Step 2: Convert to fraction form
6,805,105.65/10,207,658.48 = 6,285,474.45/x - Step 3: Cross multiply
6,805,105.65x = 10,207,658.48 × 6,285,474.45 - Step 4: Simplify right side
6,805,105.65x = 64,159,976,538,938.46 - Step 5: Solve for x
x = 64,159,976,538,938.46/6,805,105.65 - Step 6: Final answer
x = 9,428,211.68
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Double scale
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Similar ratio
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1.5x scale
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.