Finding the Fourth Proportional to 33,479,721.12, 46,207,057.68 and 20,434,560.66
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Solution
The fourth proportional to 33,479,721.12, 46,207,057.68 and 20,434,560.66 is: 28,202,771.45
Step by Step Solution
- Step 1: Write the proportion equation
33,479,721.12 : 46,207,057.68 = 20,434,560.66 : x - Step 2: Convert to fraction form
33,479,721.12/46,207,057.68 = 20,434,560.66/x - Step 3: Cross multiply
33,479,721.12x = 46,207,057.68 × 20,434,560.66 - Step 4: Simplify right side
33,479,721.12x = 944,220,923,082,078.88 - Step 5: Solve for x
x = 944,220,923,082,078.88/33,479,721.12 - Step 6: Final answer
x = 28,202,771.45
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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.