Finding the Fourth Proportional to 7,760,105.10, 10,708,432.65 and 4,660,786.84
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Solution
The fourth proportional to 7,760,105.10, 10,708,432.65 and 4,660,786.84 is: 6,431,578.09
Step by Step Solution
- Step 1: Write the proportion equation
7,760,105.10 : 10,708,432.65 = 4,660,786.84 : x - Step 2: Convert to fraction form
7,760,105.10/10,708,432.65 = 4,660,786.84/x - Step 3: Cross multiply
7,760,105.10x = 10,708,432.65 × 4,660,786.84 - Step 4: Simplify right side
7,760,105.10x = 49,909,721,972,146.33 - Step 5: Solve for x
x = 49,909,721,972,146.33/7,760,105.10 - Step 6: Final answer
x = 6,431,578.09
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1.5x scale
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.