Finding the Fourth Proportional to 7,188,257.67, 9,919,843.62 and 3,925,095.09
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Solution
The fourth proportional to 7,188,257.67, 9,919,843.62 and 3,925,095.09 is: 5,416,657.45
Step by Step Solution
- Step 1: Write the proportion equation
7,188,257.67 : 9,919,843.62 = 3,925,095.09 : x - Step 2: Convert to fraction form
7,188,257.67/9,919,843.62 = 3,925,095.09/x - Step 3: Cross multiply
7,188,257.67x = 9,919,843.62 × 3,925,095.09 - Step 4: Simplify right side
7,188,257.67x = 38,936,329,486,429.82 - Step 5: Solve for x
x = 38,936,329,486,429.82/7,188,257.67 - Step 6: Final answer
x = 5,416,657.45
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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.