Finding the Fourth Proportional to 8,420,744.46, 11,617,772.91 and 6,869,324.22
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Solution
The fourth proportional to 8,420,744.46, 11,617,772.91 and 6,869,324.22 is: 9,477,338.88
Step by Step Solution
- Step 1: Write the proportion equation
8,420,744.46 : 11,617,772.91 = 6,869,324.22 : x - Step 2: Convert to fraction form
8,420,744.46/11,617,772.91 = 6,869,324.22/x - Step 3: Cross multiply
8,420,744.46x = 11,617,772.91 × 6,869,324.22 - Step 4: Simplify right side
8,420,744.46x = 79,806,248,833,122.88 - Step 5: Solve for x
x = 79,806,248,833,122.88/8,420,744.46 - Step 6: Final answer
x = 9,477,338.88
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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.