Finding the Fourth Proportional to 45,781,512.70, 68,672,269.05 and 15,489,375.70
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Solution
The fourth proportional to 45,781,512.70, 68,672,269.05 and 15,489,375.70 is: 23,234,063.55
Step by Step Solution
- Step 1: Write the proportion equation
45,781,512.70 : 68,672,269.05 = 15,489,375.70 : x - Step 2: Convert to fraction form
45,781,512.70/68,672,269.05 = 15,489,375.70/x - Step 3: Cross multiply
45,781,512.70x = 68,672,269.05 × 15,489,375.70 - Step 4: Simplify right side
45,781,512.70x = 1,063,690,575,486,932 - Step 5: Solve for x
x = 1,063,690,575,486,932/45,781,512.70 - Step 6: Final answer
x = 23,234,063.55
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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.