Finding the Fourth Proportional to 11,762,457.20, 17,644,560.60 and 4,188,438.80
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Solution
The fourth proportional to 11,762,457.20, 17,644,560.60 and 4,188,438.80 is: 6,282,969.70
Step by Step Solution
- Step 1: Write the proportion equation
11,762,457.20 : 17,644,560.60 = 4,188,438.80 : x - Step 2: Convert to fraction form
11,762,457.20/17,644,560.60 = 4,188,438.80/x - Step 3: Cross multiply
11,762,457.20x = 17,644,560.60 × 4,188,438.80 - Step 4: Simplify right side
11,762,457.20x = 73,903,162,225,991.28 - Step 5: Solve for x
x = 73,903,162,225,991.28/11,762,457.20 - Step 6: Final answer
x = 6,282,969.70
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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.