Finding the Third Proportional to 55,392,912 and 128,235,420
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Solution
The third proportional to 55,392,912 and 128,235,420 is: 296,866,915.80
Step by Step Solution
- Step 1: Write the proportion equation
55,392,912 : 128,235,420 = 128,235,420 : x - Step 2: Convert to fraction form
55,392,912/128,235,420 = 128,235,420/x - Step 3: Cross multiply
55,392,912x = 128,235,420 × 128,235,420 - Step 4: Simplify right side
55,392,912x = 16,444,322,942,576,400 - Step 5: Solve for x
x = 16,444,322,942,576,400/55,392,912 - Step 6: Final answer
x = 296,866,915.80
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Why These Related Problems?
These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.