Finding the Fourth Proportional to 996,543,115.20, 1,494,814,672.80 and 415,412,381.70
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Solution
The fourth proportional to 996,543,115.20, 1,494,814,672.80 and 415,412,381.70 is: 623,118,572.55
Step by Step Solution
- Step 1: Write the proportion equation
996,543,115.20 : 1,494,814,672.80 = 415,412,381.70 : x - Step 2: Convert to fraction form
996,543,115.20/1,494,814,672.80 = 415,412,381.70/x - Step 3: Cross multiply
996,543,115.20x = 1,494,814,672.80 × 415,412,381.70 - Step 4: Simplify right side
996,543,115.20x = 620,964,523,427,954,176 - Step 5: Solve for x
x = 620,964,523,427,954,176/996,543,115.20 - Step 6: Final answer
x = 623,118,572.55
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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.