Finding the Fourth Proportional to 30,784,706.92, 42,482,898.90 and 16,846,064.99
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Solution
The fourth proportional to 30,784,706.92, 42,482,898.90 and 16,846,064.99 is: 23,247,571.51
Step by Step Solution
- Step 1: Write the proportion equation
30,784,706.92 : 42,482,898.90 = 16,846,064.99 : x - Step 2: Convert to fraction form
30,784,706.92/42,482,898.90 = 16,846,064.99/x - Step 3: Cross multiply
30,784,706.92x = 42,482,898.90 × 16,846,064.99 - Step 4: Simplify right side
30,784,706.92x = 715,669,675,695,903 - Step 5: Solve for x
x = 715,669,675,695,903/30,784,706.92 - Step 6: Final answer
x = 23,247,571.51
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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.