Finding the Fourth Proportional to 7,997,664.60, 11,985,999.30 and 3,201,427.80
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Solution
The fourth proportional to 7,997,664.60, 11,985,999.30 and 3,201,427.80 is: 4,797,939.56
Step by Step Solution
- Step 1: Write the proportion equation
7,997,664.60 : 11,985,999.30 = 3,201,427.80 : x - Step 2: Convert to fraction form
7,997,664.60/11,985,999.30 = 3,201,427.80/x - Step 3: Cross multiply
7,997,664.60x = 11,985,999.30 × 3,201,427.80 - Step 4: Simplify right side
7,997,664.60x = 38,372,311,369,800.54 - Step 5: Solve for x
x = 38,372,311,369,800.54/7,997,664.60 - Step 6: Final answer
x = 4,797,939.56
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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.