Finding the Fourth Proportional to 10,993,992.68, 15,168,272.74 and 6,347,167.72
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Solution
The fourth proportional to 10,993,992.68, 15,168,272.74 and 6,347,167.72 is: 8,757,107.08
Step by Step Solution
- Step 1: Write the proportion equation
10,993,992.68 : 15,168,272.74 = 6,347,167.72 : x - Step 2: Convert to fraction form
10,993,992.68/15,168,272.74 = 6,347,167.72/x - Step 3: Cross multiply
10,993,992.68x = 15,168,272.74 × 6,347,167.72 - Step 4: Simplify right side
10,993,992.68x = 96,275,571,103,483.95 - Step 5: Solve for x
x = 96,275,571,103,483.95/10,993,992.68 - Step 6: Final answer
x = 8,757,107.08
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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.