Finding the Fourth Proportional to 13,580,121.36, 18,789,915.36 and 11,841,416.40
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Solution
The fourth proportional to 13,580,121.36, 18,789,915.36 and 11,841,416.40 is: 16,384,184.35
Step by Step Solution
- Step 1: Write the proportion equation
13,580,121.36 : 18,789,915.36 = 11,841,416.40 : x - Step 2: Convert to fraction form
13,580,121.36/18,789,915.36 = 11,841,416.40/x - Step 3: Cross multiply
13,580,121.36x = 18,789,915.36 × 11,841,416.40 - Step 4: Simplify right side
13,580,121.36x = 222,499,211,898,515.91 - Step 5: Solve for x
x = 222,499,211,898,515.91/13,580,121.36 - Step 6: Final answer
x = 16,384,184.35
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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.