Finding the Fourth Proportional to 5,107,617.99, 7,048,560.90 and 2,815,860.69
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Solution
The fourth proportional to 5,107,617.99, 7,048,560.90 and 2,815,860.69 is: 3,885,914.26
Step by Step Solution
- Step 1: Write the proportion equation
5,107,617.99 : 7,048,560.90 = 2,815,860.69 : x - Step 2: Convert to fraction form
5,107,617.99/7,048,560.90 = 2,815,860.69/x - Step 3: Cross multiply
5,107,617.99x = 7,048,560.90 × 2,815,860.69 - Step 4: Simplify right side
5,107,617.99x = 19,847,765,559,381.02 - Step 5: Solve for x
x = 19,847,765,559,381.02/5,107,617.99 - Step 6: Final answer
x = 3,885,914.26
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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.