Finding the Fourth Proportional to 5,480,441.60, 8,220,662.40 and 2,640,840.80
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Solution
The fourth proportional to 5,480,441.60, 8,220,662.40 and 2,640,840.80 is: 3,961,261.20
Step by Step Solution
- Step 1: Write the proportion equation
5,480,441.60 : 8,220,662.40 = 2,640,840.80 : x - Step 2: Convert to fraction form
5,480,441.60/8,220,662.40 = 2,640,840.80/x - Step 3: Cross multiply
5,480,441.60x = 8,220,662.40 × 2,640,840.80 - Step 4: Simplify right side
5,480,441.60x = 21,709,460,668,945.92 - Step 5: Solve for x
x = 21,709,460,668,945.92/5,480,441.60 - Step 6: Final answer
x = 3,961,261.20
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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.