Finding the Fourth Proportional to 11,286,908.70, 16,930,363.05 and 8,121,882.30
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Solution
The fourth proportional to 11,286,908.70, 16,930,363.05 and 8,121,882.30 is: 12,182,823.45
Step by Step Solution
- Step 1: Write the proportion equation
11,286,908.70 : 16,930,363.05 = 8,121,882.30 : x - Step 2: Convert to fraction form
11,286,908.70/16,930,363.05 = 8,121,882.30/x - Step 3: Cross multiply
11,286,908.70x = 16,930,363.05 × 8,121,882.30 - Step 4: Simplify right side
11,286,908.70x = 137,506,415,988,369.02 - Step 5: Solve for x
x = 137,506,415,988,369.02/11,286,908.70 - Step 6: Final answer
x = 12,182,823.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.