Finding the Fourth Proportional to 178,046,944.20, 267,070,416.30 and 132,130,441.80
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Solution
The fourth proportional to 178,046,944.20, 267,070,416.30 and 132,130,441.80 is: 198,195,662.70
Step by Step Solution
- Step 1: Write the proportion equation
178,046,944.20 : 267,070,416.30 = 132,130,441.80 : x - Step 2: Convert to fraction form
178,046,944.20/267,070,416.30 = 132,130,441.80/x - Step 3: Cross multiply
178,046,944.20x = 267,070,416.30 × 132,130,441.80 - Step 4: Simplify right side
178,046,944.20x = 35,288,132,097,428,924 - Step 5: Solve for x
x = 35,288,132,097,428,924/178,046,944.20 - Step 6: Final answer
x = 198,195,662.70
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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.