Finding the Fourth Proportional to 328,771,251.42, 453,532,311.99 and 203,283,334.68
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Solution
The fourth proportional to 328,771,251.42, 453,532,311.99 and 203,283,334.68 is: 280,424,642.87
Step by Step Solution
- Step 1: Write the proportion equation
328,771,251.42 : 453,532,311.99 = 203,283,334.68 : x - Step 2: Convert to fraction form
328,771,251.42/453,532,311.99 = 203,283,334.68/x - Step 3: Cross multiply
328,771,251.42x = 453,532,311.99 × 203,283,334.68 - Step 4: Simplify right side
328,771,251.42x = 92,195,560,766,457,344 - Step 5: Solve for x
x = 92,195,560,766,457,344/328,771,251.42 - Step 6: Final answer
x = 280,424,642.87
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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.