Finding the Fourth Proportional to 8,177,641.80, 12,266,462.70 and 8,121,654.60
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Solution
The fourth proportional to 8,177,641.80, 12,266,462.70 and 8,121,654.60 is: 12,182,481.90
Step by Step Solution
- Step 1: Write the proportion equation
8,177,641.80 : 12,266,462.70 = 8,121,654.60 : x - Step 2: Convert to fraction form
8,177,641.80/12,266,462.70 = 8,121,654.60/x - Step 3: Cross multiply
8,177,641.80x = 12,266,462.70 × 8,121,654.60 - Step 4: Simplify right side
8,177,641.80x = 99,623,973,213,183.41 - Step 5: Solve for x
x = 99,623,973,213,183.41/8,177,641.80 - Step 6: Final answer
x = 12,182,481.90
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Double scale
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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.