Finding the Fourth Proportional to 7,214,725.05, 9,956,481.74 and 4,117,186.74
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Solution
The fourth proportional to 7,214,725.05, 9,956,481.74 and 4,117,186.74 is: 5,681,809.67
Step by Step Solution
- Step 1: Write the proportion equation
7,214,725.05 : 9,956,481.74 = 4,117,186.74 : x - Step 2: Convert to fraction form
7,214,725.05/9,956,481.74 = 4,117,186.74/x - Step 3: Cross multiply
7,214,725.05x = 9,956,481.74 × 4,117,186.74 - Step 4: Simplify right side
7,214,725.05x = 40,992,694,576,394.20 - Step 5: Solve for x
x = 40,992,694,576,394.20/7,214,725.05 - Step 6: Final answer
x = 5,681,809.67
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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.