Finding the Fourth Proportional to 7,480,581.21, 10,320,771.47 and 4,576,945.05
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Solution
The fourth proportional to 7,480,581.21, 10,320,771.47 and 4,576,945.05 is: 6,314,697.02
Step by Step Solution
- Step 1: Write the proportion equation
7,480,581.21 : 10,320,771.47 = 4,576,945.05 : x - Step 2: Convert to fraction form
7,480,581.21/10,320,771.47 = 4,576,945.05/x - Step 3: Cross multiply
7,480,581.21x = 10,320,771.47 × 4,576,945.05 - Step 4: Simplify right side
7,480,581.21x = 47,237,603,868,912.99 - Step 5: Solve for x
x = 47,237,603,868,912.99/7,480,581.21 - Step 6: Final answer
x = 6,314,697.02
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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.