Finding the Fourth Proportional to 13,206,566.70, 18,522,785.70 and 13,206,566.70
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Solution
The fourth proportional to 13,206,566.70, 18,522,785.70 and 13,206,566.70 is: 18,522,785.70
Step by Step Solution
- Step 1: Write the proportion equation
13,206,566.70 : 18,522,785.70 = 13,206,566.70 : x - Step 2: Convert to fraction form
13,206,566.70/18,522,785.70 = 13,206,566.70/x - Step 3: Cross multiply
13,206,566.70x = 18,522,785.70 × 13,206,566.70 - Step 4: Simplify right side
13,206,566.70x = 244,622,404,816,856.16 - Step 5: Solve for x
x = 244,622,404,816,856.16/13,206,566.70 - Step 6: Final answer
x = 18,522,785.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.