Finding the Fourth Proportional to 5,107,616.98, 7,048,559.52 and 2,815,859.68
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Solution
The fourth proportional to 5,107,616.98, 7,048,559.52 and 2,815,859.68 is: 3,885,912.87
Step by Step Solution
- Step 1: Write the proportion equation
5,107,616.98 : 7,048,559.52 = 2,815,859.68 : x - Step 2: Convert to fraction form
5,107,616.98/7,048,559.52 = 2,815,859.68/x - Step 3: Cross multiply
5,107,616.98x = 7,048,559.52 × 2,815,859.68 - Step 4: Simplify right side
5,107,616.98x = 19,847,754,554,448.15 - Step 5: Solve for x
x = 19,847,754,554,448.15/5,107,616.98 - Step 6: Final answer
x = 3,885,912.87
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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.