Finding the Fourth Proportional to 20,616,716.01, 28,451,125.36 and 11,449,358.76
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Solution
The fourth proportional to 20,616,716.01, 28,451,125.36 and 11,449,358.76 is: 15,800,146.89
Step by Step Solution
- Step 1: Write the proportion equation
20,616,716.01 : 28,451,125.36 = 11,449,358.76 : x - Step 2: Convert to fraction form
20,616,716.01/28,451,125.36 = 11,449,358.76/x - Step 3: Cross multiply
20,616,716.01x = 28,451,125.36 × 11,449,358.76 - Step 4: Simplify right side
20,616,716.01x = 325,747,141,333,339.94 - Step 5: Solve for x
x = 325,747,141,333,339.94/20,616,716.01 - Step 6: Final answer
x = 15,800,146.89
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1.5x scale
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.