Finding the Fourth Proportional to 11,207,470.80, 16,811,206.20 and 10,215,447.60
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Solution
The fourth proportional to 11,207,470.80, 16,811,206.20 and 10,215,447.60 is: 15,323,171.40
Step by Step Solution
- Step 1: Write the proportion equation
11,207,470.80 : 16,811,206.20 = 10,215,447.60 : x - Step 2: Convert to fraction form
11,207,470.80/16,811,206.20 = 10,215,447.60/x - Step 3: Cross multiply
11,207,470.80x = 16,811,206.20 × 10,215,447.60 - Step 4: Simplify right side
11,207,470.80x = 171,733,996,028,895.09 - Step 5: Solve for x
x = 171,733,996,028,895.09/11,207,470.80 - Step 6: Final answer
x = 15,323,171.40
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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.