Finding the Fourth Proportional to 11,278,175.94, 15,563,898.50 and 6,121,538.55
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Solution
The fourth proportional to 11,278,175.94, 15,563,898.50 and 6,121,538.55 is: 8,447,731.72
Step by Step Solution
- Step 1: Write the proportion equation
11,278,175.94 : 15,563,898.50 = 6,121,538.55 : x - Step 2: Convert to fraction form
11,278,175.94/15,563,898.50 = 6,121,538.55/x - Step 3: Cross multiply
11,278,175.94x = 15,563,898.50 × 6,121,538.55 - Step 4: Simplify right side
11,278,175.94x = 95,275,004,625,429.47 - Step 5: Solve for x
x = 95,275,004,625,429.47/11,278,175.94 - Step 6: Final answer
x = 8,447,731.72
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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.