Finding the Fourth Proportional to 178,045,272.70, 267,067,909.05 and 132,128,770.30
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Solution
The fourth proportional to 178,045,272.70, 267,067,909.05 and 132,128,770.30 is: 198,193,155.45
Step by Step Solution
- Step 1: Write the proportion equation
178,045,272.70 : 267,067,909.05 = 132,128,770.30 : x - Step 2: Convert to fraction form
178,045,272.70/267,067,909.05 = 132,128,770.30/x - Step 3: Cross multiply
178,045,272.70x = 267,067,909.05 × 132,128,770.30 - Step 4: Simplify right side
178,045,272.70x = 35,287,354,409,368,740 - Step 5: Solve for x
x = 35,287,354,409,368,740/178,045,272.70 - Step 6: Final answer
x = 198,193,155.45
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1.5x scale
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.