Finding the Fourth Proportional to 22,176,420.80, 33,264,631.20 and 18,929,163.20
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Solution
The fourth proportional to 22,176,420.80, 33,264,631.20 and 18,929,163.20 is: 28,393,744.80
Step by Step Solution
- Step 1: Write the proportion equation
22,176,420.80 : 33,264,631.20 = 18,929,163.20 : x - Step 2: Convert to fraction form
22,176,420.80/33,264,631.20 = 18,929,163.20/x - Step 3: Cross multiply
22,176,420.80x = 33,264,631.20 × 18,929,163.20 - Step 4: Simplify right side
22,176,420.80x = 629,671,632,772,611.75 - Step 5: Solve for x
x = 629,671,632,772,611.75/22,176,420.80 - Step 6: Final answer
x = 28,393,744.80
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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.