Finding the Fourth Proportional to 30,429,477.63, 41,993,694.68 and 16,678,476.99
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Solution
The fourth proportional to 30,429,477.63, 41,993,694.68 and 16,678,476.99 is: 23,016,854.87
Step by Step Solution
- Step 1: Write the proportion equation
30,429,477.63 : 41,993,694.68 = 16,678,476.99 : x - Step 2: Convert to fraction form
30,429,477.63/41,993,694.68 = 16,678,476.99/x - Step 3: Cross multiply
30,429,477.63x = 41,993,694.68 × 16,678,476.99 - Step 4: Simplify right side
30,429,477.63x = 700,390,870,362,073 - Step 5: Solve for x
x = 700,390,870,362,073/30,429,477.63 - Step 6: Final answer
x = 23,016,854.87
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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.