Finding the Fourth Proportional to 7,157,349.82, 10,660,219.25 and 7,122,473.92
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Solution
The fourth proportional to 7,157,349.82, 10,660,219.25 and 7,122,473.92 is: 10,608,274.78
Step by Step Solution
- Step 1: Write the proportion equation
7,157,349.82 : 10,660,219.25 = 7,122,473.92 : x - Step 2: Convert to fraction form
7,157,349.82/10,660,219.25 = 7,122,473.92/x - Step 3: Cross multiply
7,157,349.82x = 10,660,219.25 × 7,122,473.92 - Step 4: Simplify right side
7,157,349.82x = 75,927,133,589,606.95 - Step 5: Solve for x
x = 75,927,133,589,606.95/7,157,349.82 - Step 6: Final answer
x = 10,608,274.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.