Finding the Fourth Proportional to 268,400,734.80, 402,601,102.20 and 139,260,571.80
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Solution
The fourth proportional to 268,400,734.80, 402,601,102.20 and 139,260,571.80 is: 208,890,857.70
Step by Step Solution
- Step 1: Write the proportion equation
268,400,734.80 : 402,601,102.20 = 139,260,571.80 : x - Step 2: Convert to fraction form
268,400,734.80/402,601,102.20 = 139,260,571.80/x - Step 3: Cross multiply
268,400,734.80x = 402,601,102.20 × 139,260,571.80 - Step 4: Simplify right side
268,400,734.80x = 56,066,459,699,682,240 - Step 5: Solve for x
x = 56,066,459,699,682,240/268,400,734.80 - Step 6: Final answer
x = 208,890,857.70
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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.