Finding the Fourth Proportional to 8,197,613.70, 12,296,420.55 and 8,085,639.30
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Solution
The fourth proportional to 8,197,613.70, 12,296,420.55 and 8,085,639.30 is: 12,128,458.95
Step by Step Solution
- Step 1: Write the proportion equation
8,197,613.70 : 12,296,420.55 = 8,085,639.30 : x - Step 2: Convert to fraction form
8,197,613.70/12,296,420.55 = 8,085,639.30/x - Step 3: Cross multiply
8,197,613.70x = 12,296,420.55 × 8,085,639.30 - Step 4: Simplify right side
8,197,613.70x = 99,424,421,248,407.62 - Step 5: Solve for x
x = 99,424,421,248,407.62/8,197,613.70 - Step 6: Final answer
x = 12,128,458.95
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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.