Finding the Fourth Proportional to 12,256,964.11, 16,916,449.35 and 9,311,934.96
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Solution
The fourth proportional to 12,256,964.11, 16,916,449.35 and 9,311,934.96 is: 12,851,867.29
Step by Step Solution
- Step 1: Write the proportion equation
12,256,964.11 : 16,916,449.35 = 9,311,934.96 : x - Step 2: Convert to fraction form
12,256,964.11/16,916,449.35 = 9,311,934.96/x - Step 3: Cross multiply
12,256,964.11x = 16,916,449.35 × 9,311,934.96 - Step 4: Simplify right side
12,256,964.11x = 157,524,876,101,334.31 - Step 5: Solve for x
x = 157,524,876,101,334.31/12,256,964.11 - Step 6: Final answer
x = 12,851,867.29
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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.