Finding the Fourth Proportional to 19,865,894.76, 27,414,568.67 and 11,163,942.05
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Solution
The fourth proportional to 19,865,894.76, 27,414,568.67 and 11,163,942.05 is: 15,406,034.28
Step by Step Solution
- Step 1: Write the proportion equation
19,865,894.76 : 27,414,568.67 = 11,163,942.05 : x - Step 2: Convert to fraction form
19,865,894.76/27,414,568.67 = 11,163,942.05/x - Step 3: Cross multiply
19,865,894.76x = 27,414,568.67 × 11,163,942.05 - Step 4: Simplify right side
19,865,894.76x = 306,054,655,764,733 - Step 5: Solve for x
x = 306,054,655,764,733/19,865,894.76 - Step 6: Final answer
x = 15,406,034.28
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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.