Finding the Fourth Proportional to 11,923,629.60, 16,456,754.70 and 7,028,560.92
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Solution
The fourth proportional to 11,923,629.60, 16,456,754.70 and 7,028,560.92 is: 9,700,678.97
Step by Step Solution
- Step 1: Write the proportion equation
11,923,629.60 : 16,456,754.70 = 7,028,560.92 : x - Step 2: Convert to fraction form
11,923,629.60/16,456,754.70 = 7,028,560.92/x - Step 3: Cross multiply
11,923,629.60x = 16,456,754.70 × 7,028,560.92 - Step 4: Simplify right side
11,923,629.60x = 115,667,302,954,446.31 - Step 5: Solve for x
x = 115,667,302,954,446.31/11,923,629.60 - Step 6: Final answer
x = 9,700,678.97
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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.