Finding the Fourth Proportional to 7,350,639.36, 10,144,101.60 and 4,450,560.72
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Solution
The fourth proportional to 7,350,639.36, 10,144,101.60 and 4,450,560.72 is: 6,141,906.56
Step by Step Solution
- Step 1: Write the proportion equation
7,350,639.36 : 10,144,101.60 = 4,450,560.72 : x - Step 2: Convert to fraction form
7,350,639.36/10,144,101.60 = 4,450,560.72/x - Step 3: Cross multiply
7,350,639.36x = 10,144,101.60 × 4,450,560.72 - Step 4: Simplify right side
7,350,639.36x = 45,146,940,120,649.15 - Step 5: Solve for x
x = 45,146,940,120,649.15/7,350,639.36 - Step 6: Final answer
x = 6,141,906.56
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1.5x scale
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.