Finding the Fourth Proportional to 178,045,278.70, 267,067,918.05 and 132,128,776.30
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Solution
The fourth proportional to 178,045,278.70, 267,067,918.05 and 132,128,776.30 is: 198,193,164.45
Step by Step Solution
- Step 1: Write the proportion equation
178,045,278.70 : 267,067,918.05 = 132,128,776.30 : x - Step 2: Convert to fraction form
178,045,278.70/267,067,918.05 = 132,128,776.30/x - Step 3: Cross multiply
178,045,278.70x = 267,067,918.05 × 132,128,776.30 - Step 4: Simplify right side
178,045,278.70x = 35,287,357,200,935,184 - Step 5: Solve for x
x = 35,287,357,200,935,184/178,045,278.70 - Step 6: Final answer
x = 198,193,164.45
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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.