Finding the Fourth Proportional to 16,539,953.75, 22,821,791.37 and 9,663,107.21
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Solution
The fourth proportional to 16,539,953.75, 22,821,791.37 and 9,663,107.21 is: 13,333,133.82
Step by Step Solution
- Step 1: Write the proportion equation
16,539,953.75 : 22,821,791.37 = 9,663,107.21 : x - Step 2: Convert to fraction form
16,539,953.75/22,821,791.37 = 9,663,107.21/x - Step 3: Cross multiply
16,539,953.75x = 22,821,791.37 × 9,663,107.21 - Step 4: Simplify right side
16,539,953.75x = 220,529,416,732,562.81 - Step 5: Solve for x
x = 220,529,416,732,562.81/16,539,953.75 - Step 6: Final answer
x = 13,333,133.82
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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.