Finding the Fourth Proportional to 13,270,378.36, 18,303,688.84 and 8,857,879.26
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Solution
The fourth proportional to 13,270,378.36, 18,303,688.84 and 8,857,879.26 is: 12,217,576.73
Step by Step Solution
- Step 1: Write the proportion equation
13,270,378.36 : 18,303,688.84 = 8,857,879.26 : x - Step 2: Convert to fraction form
13,270,378.36/18,303,688.84 = 8,857,879.26/x - Step 3: Cross multiply
13,270,378.36x = 18,303,688.84 × 8,857,879.26 - Step 4: Simplify right side
13,270,378.36x = 162,131,865,759,550.81 - Step 5: Solve for x
x = 162,131,865,759,550.81/13,270,378.36 - Step 6: Final answer
x = 12,217,576.73
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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.