Finding the Fourth Proportional to 7,809,381, 11,713,728.86 and 2,129,586.48
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Solution
The fourth proportional to 7,809,381, 11,713,728.86 and 2,129,586.48 is: 3,194,286.28
Step by Step Solution
- Step 1: Write the proportion equation
7,809,381 : 11,713,728.86 = 2,129,586.48 : x - Step 2: Convert to fraction form
7,809,381/11,713,728.86 = 2,129,586.48/x - Step 3: Cross multiply
7,809,381x = 11,713,728.86 × 2,129,586.48 - Step 4: Simplify right side
7,809,381x = 24,945,398,610,641.81 - Step 5: Solve for x
x = 24,945,398,610,641.81/7,809,381 - Step 6: Final answer
x = 3,194,286.28
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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.