Finding the Fourth Proportional to 221,279,401.80, 331,919,102.70 and 106,488,145.80
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Solution
The fourth proportional to 221,279,401.80, 331,919,102.70 and 106,488,145.80 is: 159,732,218.70
Step by Step Solution
- Step 1: Write the proportion equation
221,279,401.80 : 331,919,102.70 = 106,488,145.80 : x - Step 2: Convert to fraction form
221,279,401.80/331,919,102.70 = 106,488,145.80/x - Step 3: Cross multiply
221,279,401.80x = 331,919,102.70 × 106,488,145.80 - Step 4: Simplify right side
221,279,401.80x = 35,345,449,802,122,772 - Step 5: Solve for x
x = 35,345,449,802,122,772/221,279,401.80 - Step 6: Final answer
x = 159,732,218.70
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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.