Finding the Fourth Proportional to 8,903,420.76, 12,286,721.44 and 5,035,858.68
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Solution
The fourth proportional to 8,903,420.76, 12,286,721.44 and 5,035,858.68 is: 6,949,485.43
Step by Step Solution
- Step 1: Write the proportion equation
8,903,420.76 : 12,286,721.44 = 5,035,858.68 : x - Step 2: Convert to fraction form
8,903,420.76/12,286,721.44 = 5,035,858.68/x - Step 3: Cross multiply
8,903,420.76x = 12,286,721.44 × 5,035,858.68 - Step 4: Simplify right side
8,903,420.76x = 61,874,192,812,366.09 - Step 5: Solve for x
x = 61,874,192,812,366.09/8,903,420.76 - Step 6: Final answer
x = 6,949,485.43
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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.