Finding the Fourth Proportional to 5,477,416.40, 8,216,902.20 and 1,690,504.40
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Solution
The fourth proportional to 5,477,416.40, 8,216,902.20 and 1,690,504.40 is: 2,535,996.59
Step by Step Solution
- Step 1: Write the proportion equation
5,477,416.40 : 8,216,902.20 = 1,690,504.40 : x - Step 2: Convert to fraction form
5,477,416.40/8,216,902.20 = 1,690,504.40/x - Step 3: Cross multiply
5,477,416.40x = 8,216,902.20 × 1,690,504.40 - Step 4: Simplify right side
5,477,416.40x = 13,890,709,323,469.68 - Step 5: Solve for x
x = 13,890,709,323,469.68/5,477,416.40 - Step 6: Final answer
x = 2,535,996.59
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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.