Finding the Fourth Proportional to 11,778,328.20, 17,668,658.70 and 4,100,791.80
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Solution
The fourth proportional to 11,778,328.20, 17,668,658.70 and 4,100,791.80 is: 6,151,593.80
Step by Step Solution
- Step 1: Write the proportion equation
11,778,328.20 : 17,668,658.70 = 4,100,791.80 : x - Step 2: Convert to fraction form
11,778,328.20/17,668,658.70 = 4,100,791.80/x - Step 3: Cross multiply
11,778,328.20x = 17,668,658.70 × 4,100,791.80 - Step 4: Simplify right side
11,778,328.20x = 72,455,490,713,958.66 - Step 5: Solve for x
x = 72,455,490,713,958.66/11,778,328.20 - Step 6: Final answer
x = 6,151,593.80
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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.