Finding the Fourth Proportional to 8,085,646.40, 12,128,469.60 and 2,405,132.60
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Solution
The fourth proportional to 8,085,646.40, 12,128,469.60 and 2,405,132.60 is: 3,607,698.90
Step by Step Solution
- Step 1: Write the proportion equation
8,085,646.40 : 12,128,469.60 = 2,405,132.60 : x - Step 2: Convert to fraction form
8,085,646.40/12,128,469.60 = 2,405,132.60/x - Step 3: Cross multiply
8,085,646.40x = 12,128,469.60 × 2,405,132.60 - Step 4: Simplify right side
8,085,646.40x = 29,170,577,623,068.96 - Step 5: Solve for x
x = 29,170,577,623,068.96/8,085,646.40 - Step 6: Final answer
x = 3,607,698.90
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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.