Finding the Fourth Proportional to 11,286,746.20, 16,930,119.30 and 7,885,523.80
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Solution
The fourth proportional to 11,286,746.20, 16,930,119.30 and 7,885,523.80 is: 11,828,285.70
Step by Step Solution
- Step 1: Write the proportion equation
11,286,746.20 : 16,930,119.30 = 7,885,523.80 : x - Step 2: Convert to fraction form
11,286,746.20/16,930,119.30 = 7,885,523.80/x - Step 3: Cross multiply
11,286,746.20x = 16,930,119.30 × 7,885,523.80 - Step 4: Simplify right side
11,286,746.20x = 133,502,858,676,989.34 - Step 5: Solve for x
x = 133,502,858,676,989.34/11,286,746.20 - Step 6: Final answer
x = 11,828,285.70
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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.