Finding the Fourth Proportional to 7,149,129.69, 9,865,869.08 and 3,885,942.41
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Solution
The fourth proportional to 7,149,129.69, 9,865,869.08 and 3,885,942.41 is: 5,362,638.62
Step by Step Solution
- Step 1: Write the proportion equation
7,149,129.69 : 9,865,869.08 = 3,885,942.41 : x - Step 2: Convert to fraction form
7,149,129.69/9,865,869.08 = 3,885,942.41/x - Step 3: Cross multiply
7,149,129.69x = 9,865,869.08 × 3,885,942.41 - Step 4: Simplify right side
7,149,129.69x = 38,338,199,000,720.62 - Step 5: Solve for x
x = 38,338,199,000,720.62/7,149,129.69 - Step 6: Final answer
x = 5,362,638.62
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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.