Finding the Fourth Proportional to 206,193,358.08, 309,410,642.88 and 76,890,297.60
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Solution
The fourth proportional to 206,193,358.08, 309,410,642.88 and 76,890,297.60 is: 115,380,420.75
Step by Step Solution
- Step 1: Write the proportion equation
206,193,358.08 : 309,410,642.88 = 76,890,297.60 : x - Step 2: Convert to fraction form
206,193,358.08/309,410,642.88 = 76,890,297.60/x - Step 3: Cross multiply
206,193,358.08x = 309,410,642.88 × 76,890,297.60 - Step 4: Simplify right side
206,193,358.08x = 23,790,676,411,650,520 - Step 5: Solve for x
x = 23,790,676,411,650,520/206,193,358.08 - Step 6: Final answer
x = 115,380,420.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.