Finding the Fourth Proportional to 5,430,039.40, 8,149,651.80 and 2,237,456.80
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Solution
The fourth proportional to 5,430,039.40, 8,149,651.80 and 2,237,456.80 is: 3,358,077.63
Step by Step Solution
- Step 1: Write the proportion equation
5,430,039.40 : 8,149,651.80 = 2,237,456.80 : x - Step 2: Convert to fraction form
5,430,039.40/8,149,651.80 = 2,237,456.80/x - Step 3: Cross multiply
5,430,039.40x = 8,149,651.80 × 2,237,456.80 - Step 4: Simplify right side
5,430,039.40x = 18,234,493,837,542.24 - Step 5: Solve for x
x = 18,234,493,837,542.24/5,430,039.40 - Step 6: Final answer
x = 3,358,077.63
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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.