Finding the Fourth Proportional to 7,428,987.56, 11,144,244.90 and 2,571,286.12
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Solution
The fourth proportional to 7,428,987.56, 11,144,244.90 and 2,571,286.12 is: 3,857,193.45
Step by Step Solution
- Step 1: Write the proportion equation
7,428,987.56 : 11,144,244.90 = 2,571,286.12 : x - Step 2: Convert to fraction form
7,428,987.56/11,144,244.90 = 2,571,286.12/x - Step 3: Cross multiply
7,428,987.56x = 11,144,244.90 × 2,571,286.12 - Step 4: Simplify right side
7,428,987.56x = 28,655,042,160,673.13 - Step 5: Solve for x
x = 28,655,042,160,673.13/7,428,987.56 - Step 6: Final answer
x = 3,857,193.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.