Finding the Fourth Proportional to 20,446,544.44, 28,211,198.70 and 12,497,074.84
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Solution
The fourth proportional to 20,446,544.44, 28,211,198.70 and 12,497,074.84 is: 17,242,887.30
Step by Step Solution
- Step 1: Write the proportion equation
20,446,544.44 : 28,211,198.70 = 12,497,074.84 : x - Step 2: Convert to fraction form
20,446,544.44/28,211,198.70 = 12,497,074.84/x - Step 3: Cross multiply
20,446,544.44x = 28,211,198.70 × 12,497,074.84 - Step 4: Simplify right side
20,446,544.44x = 352,557,461,480,010.69 - Step 5: Solve for x
x = 352,557,461,480,010.69/20,446,544.44 - Step 6: Final answer
x = 17,242,887.30
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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.