Finding the Fourth Proportional to 18,485,436.15, 27,730,676.37 and 7,700,214.73
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Solution
The fourth proportional to 18,485,436.15, 27,730,676.37 and 7,700,214.73 is: 11,551,372.70
Step by Step Solution
- Step 1: Write the proportion equation
18,485,436.15 : 27,730,676.37 = 7,700,214.73 : x - Step 2: Convert to fraction form
18,485,436.15/27,730,676.37 = 7,700,214.73/x - Step 3: Cross multiply
18,485,436.15x = 27,730,676.37 × 7,700,214.73 - Step 4: Simplify right side
18,485,436.15x = 213,532,162,479,982.44 - Step 5: Solve for x
x = 213,532,162,479,982.44/18,485,436.15 - Step 6: Final answer
x = 11,551,372.70
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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.