Finding the Fourth Proportional to 11,396,621.88, 15,727,335.12 and 6,239,981.88
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Solution
The fourth proportional to 11,396,621.88, 15,727,335.12 and 6,239,981.88 is: 8,611,173.31
Step by Step Solution
- Step 1: Write the proportion equation
11,396,621.88 : 15,727,335.12 = 6,239,981.88 : x - Step 2: Convert to fraction form
11,396,621.88/15,727,335.12 = 6,239,981.88/x - Step 3: Cross multiply
11,396,621.88x = 15,727,335.12 × 6,239,981.88 - Step 4: Simplify right side
11,396,621.88x = 98,138,286,169,487.62 - Step 5: Solve for x
x = 98,138,286,169,487.62/11,396,621.88 - Step 6: Final answer
x = 8,611,173.31
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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.