Finding the Fourth Proportional to 16,391,542.20, 24,571,566.90 and 12,746,250.60
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Solution
The fourth proportional to 16,391,542.20, 24,571,566.90 and 12,746,250.60 is: 19,107,131.32
Step by Step Solution
- Step 1: Write the proportion equation
16,391,542.20 : 24,571,566.90 = 12,746,250.60 : x - Step 2: Convert to fraction form
16,391,542.20/24,571,566.90 = 12,746,250.60/x - Step 3: Cross multiply
16,391,542.20x = 24,571,566.90 × 12,746,250.60 - Step 4: Simplify right side
16,391,542.20x = 313,195,349,342,065.12 - Step 5: Solve for x
x = 313,195,349,342,065.12/16,391,542.20 - Step 6: Final answer
x = 19,107,131.32
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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.