Finding the Fourth Proportional to 11,261,173.68, 16,893,089.12 and 8,439,221.97
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Solution
The fourth proportional to 11,261,173.68, 16,893,089.12 and 8,439,221.97 is: 12,659,828.62
Step by Step Solution
- Step 1: Write the proportion equation
11,261,173.68 : 16,893,089.12 = 8,439,221.97 : x - Step 2: Convert to fraction form
11,261,173.68/16,893,089.12 = 8,439,221.97/x - Step 3: Cross multiply
11,261,173.68x = 16,893,089.12 × 8,439,221.97 - Step 4: Simplify right side
11,261,173.68x = 142,564,528,863,770.03 - Step 5: Solve for x
x = 142,564,528,863,770.03/11,261,173.68 - Step 6: Final answer
x = 12,659,828.62
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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.