Finding the Fourth Proportional to 168,496,766.40, 252,745,149.60 and 141,286,987.20
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Solution
The fourth proportional to 168,496,766.40, 252,745,149.60 and 141,286,987.20 is: 211,930,480.80
Step by Step Solution
- Step 1: Write the proportion equation
168,496,766.40 : 252,745,149.60 = 141,286,987.20 : x - Step 2: Convert to fraction form
168,496,766.40/252,745,149.60 = 141,286,987.20/x - Step 3: Cross multiply
168,496,766.40x = 252,745,149.60 × 141,286,987.20 - Step 4: Simplify right side
168,496,766.40x = 35,709,600,716,397,280 - Step 5: Solve for x
x = 35,709,600,716,397,280/168,496,766.40 - Step 6: Final answer
x = 211,930,480.80
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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.