Finding the Fourth Proportional to 13,208,021.20, 18,524,822 and 13,208,021.20
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Solution
The fourth proportional to 13,208,021.20, 18,524,822 and 13,208,021.20 is: 18,524,822
Step by Step Solution
- Step 1: Write the proportion equation
13,208,021.20 : 18,524,822 = 13,208,021.20 : x - Step 2: Convert to fraction form
13,208,021.20/18,524,822 = 13,208,021.20/x - Step 3: Cross multiply
13,208,021.20x = 18,524,822 × 13,208,021.20 - Step 4: Simplify right side
13,208,021.20x = 244,676,241,702,226.38 - Step 5: Solve for x
x = 244,676,241,702,226.38/13,208,021.20 - Step 6: Final answer
x = 18,524,822
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1.5x scale
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.