Finding the Fourth Proportional to 155,642,491.44, 214,782,891.84 and 85,074,933.96
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Solution
The fourth proportional to 155,642,491.44, 214,782,891.84 and 85,074,933.96 is: 117,401,361.09
Step by Step Solution
- Step 1: Write the proportion equation
155,642,491.44 : 214,782,891.84 = 85,074,933.96 : x - Step 2: Convert to fraction form
155,642,491.44/214,782,891.84 = 85,074,933.96/x - Step 3: Cross multiply
155,642,491.44x = 214,782,891.84 × 85,074,933.96 - Step 4: Simplify right side
155,642,491.44x = 18,272,640,339,025,820 - Step 5: Solve for x
x = 18,272,640,339,025,820/155,642,491.44 - Step 6: Final answer
x = 117,401,361.09
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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.