Finding the Fourth Proportional to 8,903,639.46, 13,356,528.75 and 3,145,190.58
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Solution
The fourth proportional to 8,903,639.46, 13,356,528.75 and 3,145,190.58 is: 4,718,163.69
Step by Step Solution
- Step 1: Write the proportion equation
8,903,639.46 : 13,356,528.75 = 3,145,190.58 : x - Step 2: Convert to fraction form
8,903,639.46/13,356,528.75 = 3,145,190.58/x - Step 3: Cross multiply
8,903,639.46x = 13,356,528.75 × 3,145,190.58 - Step 4: Simplify right side
8,903,639.46x = 42,008,828,405,999.18 - Step 5: Solve for x
x = 42,008,828,405,999.18/8,903,639.46 - Step 6: Final answer
x = 4,718,163.69
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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.