Finding the Fourth Proportional to 7,648,640.80, 11,446,389.15 and 7,010,911.60
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Solution
The fourth proportional to 7,648,640.80, 11,446,389.15 and 7,010,911.60 is: 10,492,010.88
Step by Step Solution
- Step 1: Write the proportion equation
7,648,640.80 : 11,446,389.15 = 7,010,911.60 : x - Step 2: Convert to fraction form
7,648,640.80/11,446,389.15 = 7,010,911.60/x - Step 3: Cross multiply
7,648,640.80x = 11,446,389.15 × 7,010,911.60 - Step 4: Simplify right side
7,648,640.80x = 80,249,622,469,849.14 - Step 5: Solve for x
x = 80,249,622,469,849.14/7,648,640.80 - Step 6: Final answer
x = 10,492,010.88
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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.