Finding the Fourth Proportional to 12,689,459.92, 17,511,476.70 and 6,888,245.50
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Solution
The fourth proportional to 12,689,459.92, 17,511,476.70 and 6,888,245.50 is: 9,505,790.74
Step by Step Solution
- Step 1: Write the proportion equation
12,689,459.92 : 17,511,476.70 = 6,888,245.50 : x - Step 2: Convert to fraction form
12,689,459.92/17,511,476.70 = 6,888,245.50/x - Step 3: Cross multiply
12,689,459.92x = 17,511,476.70 × 6,888,245.50 - Step 4: Simplify right side
12,689,459.92x = 120,623,350,577,129.84 - Step 5: Solve for x
x = 120,623,350,577,129.84/12,689,459.92 - Step 6: Final answer
x = 9,505,790.74
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.