Finding the Fourth Proportional to 455,543,808.63, 683,432,236.30 and 132,427,680.63
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Solution
The fourth proportional to 455,543,808.63, 683,432,236.30 and 132,427,680.63 is: 198,675,394.56
Step by Step Solution
- Step 1: Write the proportion equation
455,543,808.63 : 683,432,236.30 = 132,427,680.63 : x - Step 2: Convert to fraction form
455,543,808.63/683,432,236.30 = 132,427,680.63/x - Step 3: Cross multiply
455,543,808.63x = 683,432,236.30 × 132,427,680.63 - Step 4: Simplify right side
455,543,808.63x = 90,505,345,920,983,088 - Step 5: Solve for x
x = 90,505,345,920,983,088/455,543,808.63 - Step 6: Final answer
x = 198,675,394.56
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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.