Finding the Fourth Proportional to 21,746,812.80, 32,630,716.80 and 15,343,276.80
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Solution
The fourth proportional to 21,746,812.80, 32,630,716.80 and 15,343,276.80 is: 23,022,321.69
Step by Step Solution
- Step 1: Write the proportion equation
21,746,812.80 : 32,630,716.80 = 15,343,276.80 : x - Step 2: Convert to fraction form
21,746,812.80/32,630,716.80 = 15,343,276.80/x - Step 3: Cross multiply
21,746,812.80x = 32,630,716.80 × 15,343,276.80 - Step 4: Simplify right side
21,746,812.80x = 500,662,120,044,810.25 - Step 5: Solve for x
x = 500,662,120,044,810.25/21,746,812.80 - Step 6: Final answer
x = 23,022,321.69
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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.