Finding the Fourth Proportional to 8,394,731.60, 12,595,207.80 and 8,083,691.60
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Solution
The fourth proportional to 8,394,731.60, 12,595,207.80 and 8,083,691.60 is: 12,128,532.55
Step by Step Solution
- Step 1: Write the proportion equation
8,394,731.60 : 12,595,207.80 = 8,083,691.60 : x - Step 2: Convert to fraction form
8,394,731.60/12,595,207.80 = 8,083,691.60/x - Step 3: Cross multiply
8,394,731.60x = 12,595,207.80 × 8,083,691.60 - Step 4: Simplify right side
8,394,731.60x = 101,815,775,493,114.48 - Step 5: Solve for x
x = 101,815,775,493,114.48/8,394,731.60 - Step 6: Final answer
x = 12,128,532.55
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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.