Finding the Fourth Proportional to 13,148,257.62, 18,144,247.40 and 7,347,087.03
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Solution
The fourth proportional to 13,148,257.62, 18,144,247.40 and 7,347,087.03 is: 10,138,785.58
Step by Step Solution
- Step 1: Write the proportion equation
13,148,257.62 : 18,144,247.40 = 7,347,087.03 : x - Step 2: Convert to fraction form
13,148,257.62/18,144,247.40 = 7,347,087.03/x - Step 3: Cross multiply
13,148,257.62x = 18,144,247.40 × 7,347,087.03 - Step 4: Simplify right side
13,148,257.62x = 133,307,364,704,915.78 - Step 5: Solve for x
x = 133,307,364,704,915.78/13,148,257.62 - Step 6: Final answer
x = 10,138,785.58
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1.5x scale
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.