Finding the Fourth Proportional to 4,212,138.30, 6,318,207.45 and 4,046,801.10
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Solution
The fourth proportional to 4,212,138.30, 6,318,207.45 and 4,046,801.10 is: 6,070,201.65
Step by Step Solution
- Step 1: Write the proportion equation
4,212,138.30 : 6,318,207.45 = 4,046,801.10 : x - Step 2: Convert to fraction form
4,212,138.30/6,318,207.45 = 4,046,801.10/x - Step 3: Cross multiply
4,212,138.30x = 6,318,207.45 × 4,046,801.10 - Step 4: Simplify right side
4,212,138.30x = 25,568,528,858,688.20 - Step 5: Solve for x
x = 25,568,528,858,688.20/4,212,138.30 - Step 6: Final answer
x = 6,070,201.65
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Double scale
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Similar ratio
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1.5x scale
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.