Finding the Fourth Proportional to 87,365,969.20, 120,589,018.68 and 50,708,350
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Solution
The fourth proportional to 87,365,969.20, 120,589,018.68 and 50,708,350 is: 69,991,441.99
Step by Step Solution
- Step 1: Write the proportion equation
87,365,969.20 : 120,589,018.68 = 50,708,350 : x - Step 2: Convert to fraction form
87,365,969.20/120,589,018.68 = 50,708,350/x - Step 3: Cross multiply
87,365,969.20x = 120,589,018.68 × 50,708,350 - Step 4: Simplify right side
87,365,969.20x = 6,114,870,165,381,978 - Step 5: Solve for x
x = 6,114,870,165,381,978/87,365,969.20 - Step 6: Final answer
x = 69,991,441.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.