Finding the Fourth Proportional to 18,960,414.12, 26,157,926.84 and 11,011,603.46
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Solution
The fourth proportional to 18,960,414.12, 26,157,926.84 and 11,011,603.46 is: 15,191,689.15
Step by Step Solution
- Step 1: Write the proportion equation
18,960,414.12 : 26,157,926.84 = 11,011,603.46 : x - Step 2: Convert to fraction form
18,960,414.12/26,157,926.84 = 11,011,603.46/x - Step 3: Cross multiply
18,960,414.12x = 26,157,926.84 × 11,011,603.46 - Step 4: Simplify right side
18,960,414.12x = 288,040,717,511,923.25 - Step 5: Solve for x
x = 288,040,717,511,923.25/18,960,414.12 - Step 6: Final answer
x = 15,191,689.15
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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.