Finding the Fourth Proportional to 20,151,272.80, 30,226,909.20 and 8,192,591.20
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Solution
The fourth proportional to 20,151,272.80, 30,226,909.20 and 8,192,591.20 is: 12,288,886.80
Step by Step Solution
- Step 1: Write the proportion equation
20,151,272.80 : 30,226,909.20 = 8,192,591.20 : x - Step 2: Convert to fraction form
20,151,272.80/30,226,909.20 = 8,192,591.20/x - Step 3: Cross multiply
20,151,272.80x = 30,226,909.20 × 8,192,591.20 - Step 4: Simplify right side
20,151,272.80x = 247,636,710,315,119.03 - Step 5: Solve for x
x = 247,636,710,315,119.03/20,151,272.80 - Step 6: Final answer
x = 12,288,886.80
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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.