Finding the Fourth Proportional to 326,764,809.40, 490,147,214.10 and 324,497,327.80
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Solution
The fourth proportional to 326,764,809.40, 490,147,214.10 and 324,497,327.80 is: 486,745,991.70
Step by Step Solution
- Step 1: Write the proportion equation
326,764,809.40 : 490,147,214.10 = 324,497,327.80 : x - Step 2: Convert to fraction form
326,764,809.40/490,147,214.10 = 324,497,327.80/x - Step 3: Cross multiply
326,764,809.40x = 490,147,214.10 × 324,497,327.80 - Step 4: Simplify right side
326,764,809.40x = 159,051,461,204,064,480 - Step 5: Solve for x
x = 159,051,461,204,064,480/326,764,809.40 - Step 6: Final answer
x = 486,745,991.70
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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.