Finding the Fourth Proportional to 12,277,759.68, 18,413,496.99 and 3,639,840.21
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Solution
The fourth proportional to 12,277,759.68, 18,413,496.99 and 3,639,840.21 is: 5,458,828.69
Step by Step Solution
- Step 1: Write the proportion equation
12,277,759.68 : 18,413,496.99 = 3,639,840.21 : x - Step 2: Convert to fraction form
12,277,759.68/18,413,496.99 = 3,639,840.21/x - Step 3: Cross multiply
12,277,759.68x = 18,413,496.99 × 3,639,840.21 - Step 4: Simplify right side
12,277,759.68x = 67,022,186,750,915.96 - Step 5: Solve for x
x = 67,022,186,750,915.96/12,277,759.68 - Step 6: Final answer
x = 5,458,828.69
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1.5x scale
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.