Finding the Fourth Proportional to 11,071,953.16, 15,278,948.94 and 6,491,325.40
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Solution
The fourth proportional to 11,071,953.16, 15,278,948.94 and 6,491,325.40 is: 8,957,825.95
Step by Step Solution
- Step 1: Write the proportion equation
11,071,953.16 : 15,278,948.94 = 6,491,325.40 : x - Step 2: Convert to fraction form
11,071,953.16/15,278,948.94 = 6,491,325.40/x - Step 3: Cross multiply
11,071,953.16x = 15,278,948.94 × 6,491,325.40 - Step 4: Simplify right side
11,071,953.16x = 99,180,629,339,525.08 - Step 5: Solve for x
x = 99,180,629,339,525.08/11,071,953.16 - Step 6: Final answer
x = 8,957,825.95
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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.