Finding the Fourth Proportional to 13,279,812.53, 18,325,892.42 and 8,122,795.25
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Solution
The fourth proportional to 13,279,812.53, 18,325,892.42 and 8,122,795.25 is: 11,209,305.22
Step by Step Solution
- Step 1: Write the proportion equation
13,279,812.53 : 18,325,892.42 = 8,122,795.25 : x - Step 2: Convert to fraction form
13,279,812.53/18,325,892.42 = 8,122,795.25/x - Step 3: Cross multiply
13,279,812.53x = 18,325,892.42 × 8,122,795.25 - Step 4: Simplify right side
13,279,812.53x = 148,857,471,829,864.53 - Step 5: Solve for x
x = 148,857,471,829,864.53/13,279,812.53 - Step 6: Final answer
x = 11,209,305.22
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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.