Finding the Fourth Proportional to 46,343,728.80, 69,515,593.20 and 12,268,519.20
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Solution
The fourth proportional to 46,343,728.80, 69,515,593.20 and 12,268,519.20 is: 18,402,778.80
Step by Step Solution
- Step 1: Write the proportion equation
46,343,728.80 : 69,515,593.20 = 12,268,519.20 : x - Step 2: Convert to fraction form
46,343,728.80/69,515,593.20 = 12,268,519.20/x - Step 3: Cross multiply
46,343,728.80x = 69,515,593.20 × 12,268,519.20 - Step 4: Simplify right side
46,343,728.80x = 852,853,389,873,589.38 - Step 5: Solve for x
x = 852,853,389,873,589.38/46,343,728.80 - Step 6: Final answer
x = 18,402,778.80
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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.