Finding the Fourth Proportional to 7,877,073.28, 11,815,609.98 and 2,486,143.12
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Solution
The fourth proportional to 7,877,073.28, 11,815,609.98 and 2,486,143.12 is: 3,729,214.70
Step by Step Solution
- Step 1: Write the proportion equation
7,877,073.28 : 11,815,609.98 = 2,486,143.12 : x - Step 2: Convert to fraction form
7,877,073.28/11,815,609.98 = 2,486,143.12/x - Step 3: Cross multiply
7,877,073.28x = 11,815,609.98 × 2,486,143.12 - Step 4: Simplify right side
7,877,073.28x = 29,375,297,460,380.34 - Step 5: Solve for x
x = 29,375,297,460,380.34/7,877,073.28 - Step 6: Final answer
x = 3,729,214.70
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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.