Finding the Fourth Proportional to 18,823,777.36, 28,236,963.12 and 7,882,951.12
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Solution
The fourth proportional to 18,823,777.36, 28,236,963.12 and 7,882,951.12 is: 11,824,969.87
Step by Step Solution
- Step 1: Write the proportion equation
18,823,777.36 : 28,236,963.12 = 7,882,951.12 : x - Step 2: Convert to fraction form
18,823,777.36/28,236,963.12 = 7,882,951.12/x - Step 3: Cross multiply
18,823,777.36x = 28,236,963.12 × 7,882,951.12 - Step 4: Simplify right side
18,823,777.36x = 222,590,600,052,202.72 - Step 5: Solve for x
x = 222,590,600,052,202.72/18,823,777.36 - Step 6: Final answer
x = 11,824,969.87
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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.