Finding the Fourth Proportional to 3,119,171.10, 4,678,756.65 and 2,153,391.90
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Solution
The fourth proportional to 3,119,171.10, 4,678,756.65 and 2,153,391.90 is: 3,230,087.85
Step by Step Solution
- Step 1: Write the proportion equation
3,119,171.10 : 4,678,756.65 = 2,153,391.90 : x - Step 2: Convert to fraction form
3,119,171.10/4,678,756.65 = 2,153,391.90/x - Step 3: Cross multiply
3,119,171.10x = 4,678,756.65 × 2,153,391.90 - Step 4: Simplify right side
3,119,171.10x = 10,075,196,672,181.13 - Step 5: Solve for x
x = 10,075,196,672,181.13/3,119,171.10 - Step 6: Final answer
x = 3,230,087.85
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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.