Finding the Fourth Proportional to 8,452,438.28, 11,651,422.28 and 5,183,190.80
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Solution
The fourth proportional to 8,452,438.28, 11,651,422.28 and 5,183,190.80 is: 7,144,866.70
Step by Step Solution
- Step 1: Write the proportion equation
8,452,438.28 : 11,651,422.28 = 5,183,190.80 : x - Step 2: Convert to fraction form
8,452,438.28/11,651,422.28 = 5,183,190.80/x - Step 3: Cross multiply
8,452,438.28x = 11,651,422.28 × 5,183,190.80 - Step 4: Simplify right side
8,452,438.28x = 60,391,544,768,611.02 - Step 5: Solve for x
x = 60,391,544,768,611.02/8,452,438.28 - Step 6: Final answer
x = 7,144,866.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.