Finding the Fourth Proportional to 12,808,389.87, 17,675,792.06 and 7,007,211.99
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Solution
The fourth proportional to 12,808,389.87, 17,675,792.06 and 7,007,211.99 is: 9,670,069.64
Step by Step Solution
- Step 1: Write the proportion equation
12,808,389.87 : 17,675,792.06 = 7,007,211.99 : x - Step 2: Convert to fraction form
12,808,389.87/17,675,792.06 = 7,007,211.99/x - Step 3: Cross multiply
12,808,389.87x = 17,675,792.06 × 7,007,211.99 - Step 4: Simplify right side
12,808,389.87x = 123,858,022,020,542.73 - Step 5: Solve for x
x = 123,858,022,020,542.73/12,808,389.87 - Step 6: Final answer
x = 9,670,069.64
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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.