Finding the Fourth Proportional to 13,320,305.31, 18,382,021.14 and 7,208,733.81
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Solution
The fourth proportional to 13,320,305.31, 18,382,021.14 and 7,208,733.81 is: 9,948,052.56
Step by Step Solution
- Step 1: Write the proportion equation
13,320,305.31 : 18,382,021.14 = 7,208,733.81 : x - Step 2: Convert to fraction form
13,320,305.31/18,382,021.14 = 7,208,733.81/x - Step 3: Cross multiply
13,320,305.31x = 18,382,021.14 × 7,208,733.81 - Step 4: Simplify right side
13,320,305.31x = 132,511,097,288,052.73 - Step 5: Solve for x
x = 132,511,097,288,052.73/13,320,305.31 - Step 6: Final answer
x = 9,948,052.56
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1.5x scale
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.