Finding the Fourth Proportional to 18,574,621.60, 27,860,620.20 and 6,441,145.60
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Solution
The fourth proportional to 18,574,621.60, 27,860,620.20 and 6,441,145.60 is: 9,661,263.37
Step by Step Solution
- Step 1: Write the proportion equation
18,574,621.60 : 27,860,620.20 = 6,441,145.60 : x - Step 2: Convert to fraction form
18,574,621.60/27,860,620.20 = 6,441,145.60/x - Step 3: Cross multiply
18,574,621.60x = 27,860,620.20 × 6,441,145.60 - Step 4: Simplify right side
18,574,621.60x = 179,454,311,214,501.09 - Step 5: Solve for x
x = 179,454,311,214,501.09/18,574,621.60 - Step 6: Final answer
x = 9,661,263.37
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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.