Finding the Fourth Proportional to 18,421,145.20, 27,578,573.70 and 16,507,957.60
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Solution
The fourth proportional to 18,421,145.20, 27,578,573.70 and 16,507,957.60 is: 24,714,311.75
Step by Step Solution
- Step 1: Write the proportion equation
18,421,145.20 : 27,578,573.70 = 16,507,957.60 : x - Step 2: Convert to fraction form
18,421,145.20/27,578,573.70 = 16,507,957.60/x - Step 3: Cross multiply
18,421,145.20x = 27,578,573.70 × 16,507,957.60 - Step 4: Simplify right side
18,421,145.20x = 455,265,925,308,075.12 - Step 5: Solve for x
x = 455,265,925,308,075.12/18,421,145.20 - Step 6: Final answer
x = 24,714,311.75
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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.