Finding the Fourth Proportional to 11,229,384.70, 16,820,457.45 and 9,339,816.70
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Solution
The fourth proportional to 11,229,384.70, 16,820,457.45 and 9,339,816.70 is: 13,990,079.92
Step by Step Solution
- Step 1: Write the proportion equation
11,229,384.70 : 16,820,457.45 = 9,339,816.70 : x - Step 2: Convert to fraction form
11,229,384.70/16,820,457.45 = 9,339,816.70/x - Step 3: Cross multiply
11,229,384.70x = 16,820,457.45 × 9,339,816.70 - Step 4: Simplify right side
11,229,384.70x = 157,099,989,393,149.41 - Step 5: Solve for x
x = 157,099,989,393,149.41/11,229,384.70 - Step 6: Final answer
x = 13,990,079.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.