Finding the Fourth Proportional to 21,412,725.12, 29,548,759.68 and 11,622,958.56
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Solution
The fourth proportional to 21,412,725.12, 29,548,759.68 and 11,622,958.56 is: 16,039,248.03
Step by Step Solution
- Step 1: Write the proportion equation
21,412,725.12 : 29,548,759.68 = 11,622,958.56 : x - Step 2: Convert to fraction form
21,412,725.12/29,548,759.68 = 11,622,958.56/x - Step 3: Cross multiply
21,412,725.12x = 29,548,759.68 × 11,622,958.56 - Step 4: Simplify right side
21,412,725.12x = 343,444,009,260,038.88 - Step 5: Solve for x
x = 343,444,009,260,038.88/21,412,725.12 - Step 6: Final answer
x = 16,039,248.03
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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.