Finding the Fourth Proportional to 8,079,863.20, 12,119,794.80 and 6,272,963.80
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Solution
The fourth proportional to 8,079,863.20, 12,119,794.80 and 6,272,963.80 is: 9,409,445.70
Step by Step Solution
- Step 1: Write the proportion equation
8,079,863.20 : 12,119,794.80 = 6,272,963.80 : x - Step 2: Convert to fraction form
8,079,863.20/12,119,794.80 = 6,272,963.80/x - Step 3: Cross multiply
8,079,863.20x = 12,119,794.80 × 6,272,963.80 - Step 4: Simplify right side
8,079,863.20x = 76,027,034,043,828.25 - Step 5: Solve for x
x = 76,027,034,043,828.25/8,079,863.20 - Step 6: Final answer
x = 9,409,445.70
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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.