Finding the Fourth Proportional to 14,777,806.93, 20,393,251.80 and 8,072,145.12
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Solution
The fourth proportional to 14,777,806.93, 20,393,251.80 and 8,072,145.12 is: 11,139,493.75
Step by Step Solution
- Step 1: Write the proportion equation
14,777,806.93 : 20,393,251.80 = 8,072,145.12 : x - Step 2: Convert to fraction form
14,777,806.93/20,393,251.80 = 8,072,145.12/x - Step 3: Cross multiply
14,777,806.93x = 20,393,251.80 × 8,072,145.12 - Step 4: Simplify right side
14,777,806.93x = 164,617,287,998,301.22 - Step 5: Solve for x
x = 164,617,287,998,301.22/14,777,806.93 - Step 6: Final answer
x = 11,139,493.75
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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.