Finding the Fourth Proportional to 7,667,720.70, 11,491,812.45 and 4,075,208.70
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Solution
The fourth proportional to 7,667,720.70, 11,491,812.45 and 4,075,208.70 is: 6,107,621.27
Step by Step Solution
- Step 1: Write the proportion equation
7,667,720.70 : 11,491,812.45 = 4,075,208.70 : x - Step 2: Convert to fraction form
7,667,720.70/11,491,812.45 = 4,075,208.70/x - Step 3: Cross multiply
7,667,720.70x = 11,491,812.45 × 4,075,208.70 - Step 4: Simplify right side
7,667,720.70x = 46,831,534,075,008.31 - Step 5: Solve for x
x = 46,831,534,075,008.31/7,667,720.70 - Step 6: Final answer
x = 6,107,621.27
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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.