Finding the Fourth Proportional to 8,101,271.70, 12,151,907.55 and 2,117,639.70
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Solution
The fourth proportional to 8,101,271.70, 12,151,907.55 and 2,117,639.70 is: 3,176,459.55
Step by Step Solution
- Step 1: Write the proportion equation
8,101,271.70 : 12,151,907.55 = 2,117,639.70 : x - Step 2: Convert to fraction form
8,101,271.70/12,151,907.55 = 2,117,639.70/x - Step 3: Cross multiply
8,101,271.70x = 12,151,907.55 × 2,117,639.70 - Step 4: Simplify right side
8,101,271.70x = 25,733,361,858,609.74 - Step 5: Solve for x
x = 25,733,361,858,609.74/8,101,271.70 - Step 6: Final answer
x = 3,176,459.55
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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.