Finding the Fourth Proportional to 34,196,515.36, 47,190,855.12 and 18,515,463.52
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Solution
The fourth proportional to 34,196,515.36, 47,190,855.12 and 18,515,463.52 is: 25,551,157.69
Step by Step Solution
- Step 1: Write the proportion equation
34,196,515.36 : 47,190,855.12 = 18,515,463.52 : x - Step 2: Convert to fraction form
34,196,515.36/47,190,855.12 = 18,515,463.52/x - Step 3: Cross multiply
34,196,515.36x = 47,190,855.12 × 18,515,463.52 - Step 4: Simplify right side
34,196,515.36x = 873,760,556,451,965.12 - Step 5: Solve for x
x = 873,760,556,451,965.12/34,196,515.36 - Step 6: Final answer
x = 25,551,157.69
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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.