Finding the Fourth Proportional to 7,421,706.72, 10,165,214.52 and 6,985,939.68
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Solution
The fourth proportional to 7,421,706.72, 10,165,214.52 and 6,985,939.68 is: 9,568,361.85
Step by Step Solution
- Step 1: Write the proportion equation
7,421,706.72 : 10,165,214.52 = 6,985,939.68 : x - Step 2: Convert to fraction form
7,421,706.72/10,165,214.52 = 6,985,939.68/x - Step 3: Cross multiply
7,421,706.72x = 10,165,214.52 × 6,985,939.68 - Step 4: Simplify right side
7,421,706.72x = 71,013,575,470,980.14 - Step 5: Solve for x
x = 71,013,575,470,980.14/7,421,706.72 - Step 6: Final answer
x = 9,568,361.85
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.