Finding the Fourth Proportional to 80,536,892.13, 120,783,290.36 and 22,230,631.68
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Solution
The fourth proportional to 80,536,892.13, 120,783,290.36 and 22,230,631.68 is: 33,339,861.65
Step by Step Solution
- Step 1: Write the proportion equation
80,536,892.13 : 120,783,290.36 = 22,230,631.68 : x - Step 2: Convert to fraction form
80,536,892.13/120,783,290.36 = 22,230,631.68/x - Step 3: Cross multiply
80,536,892.13x = 120,783,290.36 × 22,230,631.68 - Step 4: Simplify right side
80,536,892.13x = 2,685,088,840,980,501.50 - Step 5: Solve for x
x = 2,685,088,840,980,501.50/80,536,892.13 - Step 6: Final answer
x = 33,339,861.65
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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.