Finding the Fourth Proportional to 12,901,310.78, 19,347,355.17 and 4,263,812.60
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Solution
The fourth proportional to 12,901,310.78, 19,347,355.17 and 4,263,812.60 is: 6,394,194.99
Step by Step Solution
- Step 1: Write the proportion equation
12,901,310.78 : 19,347,355.17 = 4,263,812.60 : x - Step 2: Convert to fraction form
12,901,310.78/19,347,355.17 = 4,263,812.60/x - Step 3: Cross multiply
12,901,310.78x = 19,347,355.17 × 4,263,812.60 - Step 4: Simplify right side
12,901,310.78x = 82,493,496,750,521.14 - Step 5: Solve for x
x = 82,493,496,750,521.14/12,901,310.78 - Step 6: Final answer
x = 6,394,194.99
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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.