Finding the Fourth Proportional to 18,443,351.60, 27,669,865.80 and 7,084,170.80
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Solution
The fourth proportional to 18,443,351.60, 27,669,865.80 and 7,084,170.80 is: 10,628,114.65
Step by Step Solution
- Step 1: Write the proportion equation
18,443,351.60 : 27,669,865.80 = 7,084,170.80 : x - Step 2: Convert to fraction form
18,443,351.60/27,669,865.80 = 7,084,170.80/x - Step 3: Cross multiply
18,443,351.60x = 27,669,865.80 × 7,084,170.80 - Step 4: Simplify right side
18,443,351.60x = 196,018,055,340,278.62 - Step 5: Solve for x
x = 196,018,055,340,278.62/18,443,351.60 - Step 6: Final answer
x = 10,628,114.65
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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.