Finding the Fourth Proportional to 7,559,811.20, 11,339,716.80 and 6,851,223.20
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Solution
The fourth proportional to 7,559,811.20, 11,339,716.80 and 6,851,223.20 is: 10,276,834.80
Step by Step Solution
- Step 1: Write the proportion equation
7,559,811.20 : 11,339,716.80 = 6,851,223.20 : x - Step 2: Convert to fraction form
7,559,811.20/11,339,716.80 = 6,851,223.20/x - Step 3: Cross multiply
7,559,811.20x = 11,339,716.80 × 6,851,223.20 - Step 4: Simplify right side
7,559,811.20x = 77,690,930,821,589.77 - Step 5: Solve for x
x = 77,690,930,821,589.77/7,559,811.20 - Step 6: Final answer
x = 10,276,834.80
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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.