Finding the Fourth Proportional to 8,177,851.80, 12,266,777.70 and 8,121,864.60
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Solution
The fourth proportional to 8,177,851.80, 12,266,777.70 and 8,121,864.60 is: 12,182,796.90
Step by Step Solution
- Step 1: Write the proportion equation
8,177,851.80 : 12,266,777.70 = 8,121,864.60 : x - Step 2: Convert to fraction form
8,177,851.80/12,266,777.70 = 8,121,864.60/x - Step 3: Cross multiply
8,177,851.80x = 12,266,777.70 × 8,121,864.60 - Step 4: Simplify right side
8,177,851.80x = 99,629,107,557,699.41 - Step 5: Solve for x
x = 99,629,107,557,699.41/8,177,851.80 - Step 6: Final answer
x = 12,182,796.90
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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.