Finding the Fourth Proportional to 12,241,497.70, 18,362,246.55 and 4,263,321.70
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Solution
The fourth proportional to 12,241,497.70, 18,362,246.55 and 4,263,321.70 is: 6,394,982.55
Step by Step Solution
- Step 1: Write the proportion equation
12,241,497.70 : 18,362,246.55 = 4,263,321.70 : x - Step 2: Convert to fraction form
12,241,497.70/18,362,246.55 = 4,263,321.70/x - Step 3: Cross multiply
12,241,497.70x = 18,362,246.55 × 4,263,321.70 - Step 4: Simplify right side
12,241,497.70x = 78,284,164,177,365.14 - Step 5: Solve for x
x = 78,284,164,177,365.14/12,241,497.70 - Step 6: Final answer
x = 6,394,982.55
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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.