Finding the Fourth Proportional to 8,195,421.80, 12,293,132.70 and 5,364,266.60
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Solution
The fourth proportional to 8,195,421.80, 12,293,132.70 and 5,364,266.60 is: 8,046,399.90
Step by Step Solution
- Step 1: Write the proportion equation
8,195,421.80 : 12,293,132.70 = 5,364,266.60 : x - Step 2: Convert to fraction form
8,195,421.80/12,293,132.70 = 5,364,266.60/x - Step 3: Cross multiply
8,195,421.80x = 12,293,132.70 × 5,364,266.60 - Step 4: Simplify right side
8,195,421.80x = 65,943,641,151,977.81 - Step 5: Solve for x
x = 65,943,641,151,977.81/8,195,421.80 - Step 6: Final answer
x = 8,046,399.90
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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.