Finding the Fourth Proportional to 6,021,715.20, 8,310,403.20 and 3,980,985.60
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Solution
The fourth proportional to 6,021,715.20, 8,310,403.20 and 3,980,985.60 is: 5,494,048.52
Step by Step Solution
- Step 1: Write the proportion equation
6,021,715.20 : 8,310,403.20 = 3,980,985.60 : x - Step 2: Convert to fraction form
6,021,715.20/8,310,403.20 = 3,980,985.60/x - Step 3: Cross multiply
6,021,715.20x = 8,310,403.20 × 3,980,985.60 - Step 4: Simplify right side
6,021,715.20x = 33,083,595,469,393.92 - Step 5: Solve for x
x = 33,083,595,469,393.92/6,021,715.20 - Step 6: Final answer
x = 5,494,048.52
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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.