Finding the Fourth Proportional to 11,449,472.80, 17,202,202.80 and 8,615,120.80
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Solution
The fourth proportional to 11,449,472.80, 17,202,202.80 and 8,615,120.80 is: 12,943,744.90
Step by Step Solution
- Step 1: Write the proportion equation
11,449,472.80 : 17,202,202.80 = 8,615,120.80 : x - Step 2: Convert to fraction form
11,449,472.80/17,202,202.80 = 8,615,120.80/x - Step 3: Cross multiply
11,449,472.80x = 17,202,202.80 × 8,615,120.80 - Step 4: Simplify right side
11,449,472.80x = 148,199,055,148,098.25 - Step 5: Solve for x
x = 148,199,055,148,098.25/11,449,472.80 - Step 6: Final answer
x = 12,943,744.90
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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.