Finding the Fourth Proportional to 5,905,412.74, 8,149,469.69 and 3,189,158.74
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Solution
The fourth proportional to 5,905,412.74, 8,149,469.69 and 3,189,158.74 is: 4,401,039.12
Step by Step Solution
- Step 1: Write the proportion equation
5,905,412.74 : 8,149,469.69 = 3,189,158.74 : x - Step 2: Convert to fraction form
5,905,412.74/8,149,469.69 = 3,189,158.74/x - Step 3: Cross multiply
5,905,412.74x = 8,149,469.69 × 3,189,158.74 - Step 4: Simplify right side
5,905,412.74x = 25,989,952,488,228.59 - Step 5: Solve for x
x = 25,989,952,488,228.59/5,905,412.74 - Step 6: Final answer
x = 4,401,039.12
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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.