Finding the Fourth Proportional to 8,271,451.80, 12,407,177.70 and 6,145,687.80
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Solution
The fourth proportional to 8,271,451.80, 12,407,177.70 and 6,145,687.80 is: 9,218,531.70
Step by Step Solution
- Step 1: Write the proportion equation
8,271,451.80 : 12,407,177.70 = 6,145,687.80 : x - Step 2: Convert to fraction form
8,271,451.80/12,407,177.70 = 6,145,687.80/x - Step 3: Cross multiply
8,271,451.80x = 12,407,177.70 × 6,145,687.80 - Step 4: Simplify right side
8,271,451.80x = 76,250,640,623,322.05 - Step 5: Solve for x
x = 76,250,640,623,322.05/8,271,451.80 - Step 6: Final answer
x = 9,218,531.70
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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.