Finding the Fourth Proportional to 5,427,817.80, 8,129,916.90 and 3,294,180.60
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Solution
The fourth proportional to 5,427,817.80, 8,129,916.90 and 3,294,180.60 is: 4,934,103.45
Step by Step Solution
- Step 1: Write the proportion equation
5,427,817.80 : 8,129,916.90 = 3,294,180.60 : x - Step 2: Convert to fraction form
5,427,817.80/8,129,916.90 = 3,294,180.60/x - Step 3: Cross multiply
5,427,817.80x = 8,129,916.90 × 3,294,180.60 - Step 4: Simplify right side
5,427,817.80x = 26,781,414,531,592.14 - Step 5: Solve for x
x = 26,781,414,531,592.14/5,427,817.80 - Step 6: Final answer
x = 4,934,103.45
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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.