Finding the Fourth Proportional to 7,786,568.15, 10,745,138.79 and 4,478,610.81
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Solution
The fourth proportional to 7,786,568.15, 10,745,138.79 and 4,478,610.81 is: 6,180,295.84
Step by Step Solution
- Step 1: Write the proportion equation
7,786,568.15 : 10,745,138.79 = 4,478,610.81 : x - Step 2: Convert to fraction form
7,786,568.15/10,745,138.79 = 4,478,610.81/x - Step 3: Cross multiply
7,786,568.15x = 10,745,138.79 × 4,478,610.81 - Step 4: Simplify right side
7,786,568.15x = 48,123,294,739,844.31 - Step 5: Solve for x
x = 48,123,294,739,844.31/7,786,568.15 - Step 6: Final answer
x = 6,180,295.84
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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.