Finding the Fourth Proportional to 5,012,169.46, 6,916,860.21 and 2,720,357.62
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Solution
The fourth proportional to 5,012,169.46, 6,916,860.21 and 2,720,357.62 is: 3,754,129.53
Step by Step Solution
- Step 1: Write the proportion equation
5,012,169.46 : 6,916,860.21 = 2,720,357.62 : x - Step 2: Convert to fraction form
5,012,169.46/6,916,860.21 = 2,720,357.62/x - Step 3: Cross multiply
5,012,169.46x = 6,916,860.21 × 2,720,357.62 - Step 4: Simplify right side
5,012,169.46x = 18,816,333,378,748.30 - Step 5: Solve for x
x = 18,816,333,378,748.30/5,012,169.46 - Step 6: Final answer
x = 3,754,129.53
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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.