Finding the Fourth Proportional to 5,215,729.08, 7,824,699.54 and 1,621,408.44
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Solution
The fourth proportional to 5,215,729.08, 7,824,699.54 and 1,621,408.44 is: 2,432,456.46
Step by Step Solution
- Step 1: Write the proportion equation
5,215,729.08 : 7,824,699.54 = 1,621,408.44 : x - Step 2: Convert to fraction form
5,215,729.08/7,824,699.54 = 1,621,408.44/x - Step 3: Cross multiply
5,215,729.08x = 7,824,699.54 × 1,621,408.44 - Step 4: Simplify right side
5,215,729.08x = 12,687,033,874,620.12 - Step 5: Solve for x
x = 12,687,033,874,620.12/5,215,729.08 - Step 6: Final answer
x = 2,432,456.46
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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.