Finding the Fourth Proportional to 6,752,344.20, 10,128,501.12 and 5,217,571.48
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Solution
The fourth proportional to 6,752,344.20, 10,128,501.12 and 5,217,571.48 is: 7,826,345.49
Step by Step Solution
- Step 1: Write the proportion equation
6,752,344.20 : 10,128,501.12 = 5,217,571.48 : x - Step 2: Convert to fraction form
6,752,344.20/10,128,501.12 = 5,217,571.48/x - Step 3: Cross multiply
6,752,344.20x = 10,128,501.12 × 5,217,571.48 - Step 4: Simplify right side
6,752,344.20x = 52,846,178,578,860.05 - Step 5: Solve for x
x = 52,846,178,578,860.05/6,752,344.20 - Step 6: Final answer
x = 7,826,345.49
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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.