Finding the Fourth Proportional to 7,706,979.12, 10,635,173.92 and 4,221,621.12
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Solution
The fourth proportional to 7,706,979.12, 10,635,173.92 and 4,221,621.12 is: 5,825,586.67
Step by Step Solution
- Step 1: Write the proportion equation
7,706,979.12 : 10,635,173.92 = 4,221,621.12 : x - Step 2: Convert to fraction form
7,706,979.12/10,635,173.92 = 4,221,621.12/x - Step 3: Cross multiply
7,706,979.12x = 10,635,173.92 × 4,221,621.12 - Step 4: Simplify right side
7,706,979.12x = 44,897,674,794,049.60 - Step 5: Solve for x
x = 44,897,674,794,049.60/7,706,979.12 - Step 6: Final answer
x = 5,825,586.67
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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.