Finding the Fourth Proportional to 5,117,618.81, 7,679,084.94 and 2,087,207.93
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Solution
The fourth proportional to 5,117,618.81, 7,679,084.94 and 2,087,207.93 is: 3,131,895.43
Step by Step Solution
- Step 1: Write the proportion equation
5,117,618.81 : 7,679,084.94 = 2,087,207.93 : x - Step 2: Convert to fraction form
5,117,618.81/7,679,084.94 = 2,087,207.93/x - Step 3: Cross multiply
5,117,618.81x = 7,679,084.94 × 2,087,207.93 - Step 4: Simplify right side
5,117,618.81x = 16,027,846,981,911.57 - Step 5: Solve for x
x = 16,027,846,981,911.57/5,117,618.81 - Step 6: Final answer
x = 3,131,895.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.