Finding the Fourth Proportional to 21,144,949.14, 31,721,393.12 and 6,764,155.68
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Solution
The fourth proportional to 21,144,949.14, 31,721,393.12 and 6,764,155.68 is: 10,147,503.31
Step by Step Solution
- Step 1: Write the proportion equation
21,144,949.14 : 31,721,393.12 = 6,764,155.68 : x - Step 2: Convert to fraction form
21,144,949.14/31,721,393.12 = 6,764,155.68/x - Step 3: Cross multiply
21,144,949.14x = 31,721,393.12 × 6,764,155.68 - Step 4: Simplify right side
21,144,949.14x = 214,568,441,450,160.91 - Step 5: Solve for x
x = 214,568,441,450,160.91/21,144,949.14 - Step 6: Final answer
x = 10,147,503.31
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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.