Finding the Fourth Proportional to 6,378,673.76, 9,574,309.21 and 2,786,919.92
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Solution
The fourth proportional to 6,378,673.76, 9,574,309.21 and 2,786,919.92 is: 4,183,131.80
Step by Step Solution
- Step 1: Write the proportion equation
6,378,673.76 : 9,574,309.21 = 2,786,919.92 : x - Step 2: Convert to fraction form
6,378,673.76/9,574,309.21 = 2,786,919.92/x - Step 3: Cross multiply
6,378,673.76x = 9,574,309.21 × 2,786,919.92 - Step 4: Simplify right side
6,378,673.76x = 26,682,833,057,588.46 - Step 5: Solve for x
x = 26,682,833,057,588.46/6,378,673.76 - Step 6: Final answer
x = 4,183,131.80
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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.