Finding the Fourth Proportional to 4,317,481.80, 6,480,369.90 and 2,189,968.20
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Solution
The fourth proportional to 4,317,481.80, 6,480,369.90 and 2,189,968.20 is: 3,287,055.90
Step by Step Solution
- Step 1: Write the proportion equation
4,317,481.80 : 6,480,369.90 = 2,189,968.20 : x - Step 2: Convert to fraction form
4,317,481.80/6,480,369.90 = 2,189,968.20/x - Step 3: Cross multiply
4,317,481.80x = 6,480,369.90 × 2,189,968.20 - Step 4: Simplify right side
4,317,481.80x = 14,191,804,005,237.18 - Step 5: Solve for x
x = 14,191,804,005,237.18/4,317,481.80 - Step 6: Final answer
x = 3,287,055.90
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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.