Finding the Fourth Proportional to 18,145,236.80, 27,217,855.20 and 5,364,603.20
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Solution
The fourth proportional to 18,145,236.80, 27,217,855.20 and 5,364,603.20 is: 8,046,904.80
Step by Step Solution
- Step 1: Write the proportion equation
18,145,236.80 : 27,217,855.20 = 5,364,603.20 : x - Step 2: Convert to fraction form
18,145,236.80/27,217,855.20 = 5,364,603.20/x - Step 3: Cross multiply
18,145,236.80x = 27,217,855.20 × 5,364,603.20 - Step 4: Simplify right side
18,145,236.80x = 146,012,993,103,056.66 - Step 5: Solve for x
x = 146,012,993,103,056.66/18,145,236.80 - Step 6: Final answer
x = 8,046,904.80
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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.