Finding the Fourth Proportional to 8,214,406.38, 12,318,989.12 and 2,821,756.46
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Solution
The fourth proportional to 8,214,406.38, 12,318,989.12 and 2,821,756.46 is: 4,231,734.53
Step by Step Solution
- Step 1: Write the proportion equation
8,214,406.38 : 12,318,989.12 = 2,821,756.46 : x - Step 2: Convert to fraction form
8,214,406.38/12,318,989.12 = 2,821,756.46/x - Step 3: Cross multiply
8,214,406.38x = 12,318,989.12 × 2,821,756.46 - Step 4: Simplify right side
8,214,406.38x = 34,761,187,130,029.71 - Step 5: Solve for x
x = 34,761,187,130,029.71/8,214,406.38 - Step 6: Final answer
x = 4,231,734.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.