Finding the Fourth Proportional to 28,916,187.72, 39,901,797.60 and 16,523,821.94
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Solution
The fourth proportional to 28,916,187.72, 39,901,797.60 and 16,523,821.94 is: 22,801,421.99
Step by Step Solution
- Step 1: Write the proportion equation
28,916,187.72 : 39,901,797.60 = 16,523,821.94 : x - Step 2: Convert to fraction form
28,916,187.72/39,901,797.60 = 16,523,821.94/x - Step 3: Cross multiply
28,916,187.72x = 39,901,797.60 × 16,523,821.94 - Step 4: Simplify right side
28,916,187.72x = 659,330,198,628,319.38 - Step 5: Solve for x
x = 659,330,198,628,319.38/28,916,187.72 - Step 6: Final answer
x = 22,801,421.99
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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.