Finding the Fourth Proportional to 5,487,709.40, 8,232,438.90 and 2,291,190.20
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Solution
The fourth proportional to 5,487,709.40, 8,232,438.90 and 2,291,190.20 is: 3,437,150.54
Step by Step Solution
- Step 1: Write the proportion equation
5,487,709.40 : 8,232,438.90 = 2,291,190.20 : x - Step 2: Convert to fraction form
5,487,709.40/8,232,438.90 = 2,291,190.20/x - Step 3: Cross multiply
5,487,709.40x = 8,232,438.90 × 2,291,190.20 - Step 4: Simplify right side
5,487,709.40x = 18,862,083,329,778.78 - Step 5: Solve for x
x = 18,862,083,329,778.78/5,487,709.40 - Step 6: Final answer
x = 3,437,150.54
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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.