Finding the Fourth Proportional to 18,949,989.18, 28,430,019.56 and 5,996,369.96
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Solution
The fourth proportional to 18,949,989.18, 28,430,019.56 and 5,996,369.96 is: 8,996,148.42
Step by Step Solution
- Step 1: Write the proportion equation
18,949,989.18 : 28,430,019.56 = 5,996,369.96 : x - Step 2: Convert to fraction form
18,949,989.18/28,430,019.56 = 5,996,369.96/x - Step 3: Cross multiply
18,949,989.18x = 28,430,019.56 × 5,996,369.96 - Step 4: Simplify right side
18,949,989.18x = 170,476,915,231,249.81 - Step 5: Solve for x
x = 170,476,915,231,249.81/18,949,989.18 - Step 6: Final answer
x = 8,996,148.42
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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.