Finding the Fourth Proportional to 100,717,815.80, 151,076,723.70 and 80,562,423.80
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Solution
The fourth proportional to 100,717,815.80, 151,076,723.70 and 80,562,423.80 is: 120,843,635.70
Step by Step Solution
- Step 1: Write the proportion equation
100,717,815.80 : 151,076,723.70 = 80,562,423.80 : x - Step 2: Convert to fraction form
100,717,815.80/151,076,723.70 = 80,562,423.80/x - Step 3: Cross multiply
100,717,815.80x = 151,076,723.70 × 80,562,423.80 - Step 4: Simplify right side
100,717,815.80x = 12,171,107,041,034,902 - Step 5: Solve for x
x = 12,171,107,041,034,902/100,717,815.80 - Step 6: Final answer
x = 120,843,635.70
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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.