Finding the Fourth Proportional to 8,221,528.30, 12,332,292.45 and 8,079,810.70
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Solution
The fourth proportional to 8,221,528.30, 12,332,292.45 and 8,079,810.70 is: 12,119,716.05
Step by Step Solution
- Step 1: Write the proportion equation
8,221,528.30 : 12,332,292.45 = 8,079,810.70 : x - Step 2: Convert to fraction form
8,221,528.30/12,332,292.45 = 8,079,810.70/x - Step 3: Cross multiply
8,221,528.30x = 12,332,292.45 × 8,079,810.70 - Step 4: Simplify right side
8,221,528.30x = 99,642,588,493,039.22 - Step 5: Solve for x
x = 99,642,588,493,039.22/8,221,528.30 - Step 6: Final answer
x = 12,119,716.05
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Double scale
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Similar ratio
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1.5x scale
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.