Finding the Fourth Proportional to 6,331,021.87, 8,736,817.90 and 3,430,410.46
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Solution
The fourth proportional to 6,331,021.87, 8,736,817.90 and 3,430,410.46 is: 4,733,970.62
Step by Step Solution
- Step 1: Write the proportion equation
6,331,021.87 : 8,736,817.90 = 3,430,410.46 : x - Step 2: Convert to fraction form
6,331,021.87/8,736,817.90 = 3,430,410.46/x - Step 3: Cross multiply
6,331,021.87x = 8,736,817.90 × 3,430,410.46 - Step 4: Simplify right side
6,331,021.87x = 29,970,871,511,275.23 - Step 5: Solve for x
x = 29,970,871,511,275.23/6,331,021.87 - Step 6: Final answer
x = 4,733,970.62
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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.