Finding the Fourth Proportional to 11,095,315.20, 16,642,972.80 and 7,893,676.80
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Solution
The fourth proportional to 11,095,315.20, 16,642,972.80 and 7,893,676.80 is: 11,840,515.20
Step by Step Solution
- Step 1: Write the proportion equation
11,095,315.20 : 16,642,972.80 = 7,893,676.80 : x - Step 2: Convert to fraction form
11,095,315.20/16,642,972.80 = 7,893,676.80/x - Step 3: Cross multiply
11,095,315.20x = 16,642,972.80 × 7,893,676.80 - Step 4: Simplify right side
11,095,315.20x = 131,374,248,274,391.05 - Step 5: Solve for x
x = 131,374,248,274,391.05/11,095,315.20 - Step 6: Final answer
x = 11,840,515.20
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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.