Finding the Fourth Proportional to 10,783,908.09, 16,183,896.10 and 7,912,694.31
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Solution
The fourth proportional to 10,783,908.09, 16,183,896.10 and 7,912,694.31 is: 11,874,936.39
Step by Step Solution
- Step 1: Write the proportion equation
10,783,908.09 : 16,183,896.10 = 7,912,694.31 : x - Step 2: Convert to fraction form
10,783,908.09/16,183,896.10 = 7,912,694.31/x - Step 3: Cross multiply
10,783,908.09x = 16,183,896.10 × 7,912,694.31 - Step 4: Simplify right side
10,783,908.09x = 128,058,222,584,101.19 - Step 5: Solve for x
x = 128,058,222,584,101.19/10,783,908.09 - Step 6: Final answer
x = 11,874,936.39
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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.