Finding the Fourth Proportional to 5,404,521.18, 8,107,938.30 and 1,992,817.62
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Solution
The fourth proportional to 5,404,521.18, 8,107,938.30 and 1,992,817.62 is: 2,989,652.88
Step by Step Solution
- Step 1: Write the proportion equation
5,404,521.18 : 8,107,938.30 = 1,992,817.62 : x - Step 2: Convert to fraction form
5,404,521.18/8,107,938.30 = 1,992,817.62/x - Step 3: Cross multiply
5,404,521.18x = 8,107,938.30 × 1,992,817.62 - Step 4: Simplify right side
5,404,521.18x = 16,157,642,306,112.85 - Step 5: Solve for x
x = 16,157,642,306,112.85/5,404,521.18 - Step 6: Final answer
x = 2,989,652.88
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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.