Finding the Fourth Proportional to 17,612,812.62, 26,393,720.94 and 12,142,292.13
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Solution
The fourth proportional to 17,612,812.62, 26,393,720.94 and 12,142,292.13 is: 18,195,859.85
Step by Step Solution
- Step 1: Write the proportion equation
17,612,812.62 : 26,393,720.94 = 12,142,292.13 : x - Step 2: Convert to fraction form
17,612,812.62/26,393,720.94 = 12,142,292.13/x - Step 3: Cross multiply
17,612,812.62x = 26,393,720.94 × 12,142,292.13 - Step 4: Simplify right side
17,612,812.62x = 320,480,270,051,178.25 - Step 5: Solve for x
x = 320,480,270,051,178.25/17,612,812.62 - Step 6: Final answer
x = 18,195,859.85
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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.