Finding the Fourth Proportional to 85,993,753.80, 128,990,630.70 and 24,582,793.80
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Solution
The fourth proportional to 85,993,753.80, 128,990,630.70 and 24,582,793.80 is: 36,874,190.70
Step by Step Solution
- Step 1: Write the proportion equation
85,993,753.80 : 128,990,630.70 = 24,582,793.80 : x - Step 2: Convert to fraction form
85,993,753.80/128,990,630.70 = 24,582,793.80/x - Step 3: Cross multiply
85,993,753.80x = 128,990,630.70 × 24,582,793.80 - Step 4: Simplify right side
85,993,753.80x = 3,170,950,076,630,050 - Step 5: Solve for x
x = 3,170,950,076,630,050/85,993,753.80 - Step 6: Final answer
x = 36,874,190.70
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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.