Finding the Fourth Proportional to 8,190,452.70, 12,285,679.05 and 6,596,129.70
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Solution
The fourth proportional to 8,190,452.70, 12,285,679.05 and 6,596,129.70 is: 9,894,194.55
Step by Step Solution
- Step 1: Write the proportion equation
8,190,452.70 : 12,285,679.05 = 6,596,129.70 : x - Step 2: Convert to fraction form
8,190,452.70/12,285,679.05 = 6,596,129.70/x - Step 3: Cross multiply
8,190,452.70x = 12,285,679.05 × 6,596,129.70 - Step 4: Simplify right side
8,190,452.70x = 81,037,932,466,372.80 - Step 5: Solve for x
x = 81,037,932,466,372.80/8,190,452.70 - Step 6: Final answer
x = 9,894,194.55
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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.