Finding the Fourth Proportional to 8,229,977.92, 12,294,911.08 and 5,327,701.12
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Solution
The fourth proportional to 8,229,977.92, 12,294,911.08 and 5,327,701.12 is: 7,959,147.91
Step by Step Solution
- Step 1: Write the proportion equation
8,229,977.92 : 12,294,911.08 = 5,327,701.12 : x - Step 2: Convert to fraction form
8,229,977.92/12,294,911.08 = 5,327,701.12/x - Step 3: Cross multiply
8,229,977.92x = 12,294,911.08 × 5,327,701.12 - Step 4: Simplify right side
8,229,977.92x = 65,503,611,531,216.41 - Step 5: Solve for x
x = 65,503,611,531,216.41/8,229,977.92 - Step 6: Final answer
x = 7,959,147.91
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.