Finding the Fourth Proportional to 7,116,883.20, 10,660,809.60 and 4,412,908.80
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Solution
The fourth proportional to 7,116,883.20, 10,660,809.60 and 4,412,908.80 is: 6,610,362.88
Step by Step Solution
- Step 1: Write the proportion equation
7,116,883.20 : 10,660,809.60 = 4,412,908.80 : x - Step 2: Convert to fraction form
7,116,883.20/10,660,809.60 = 4,412,908.80/x - Step 3: Cross multiply
7,116,883.20x = 10,660,809.60 × 4,412,908.80 - Step 4: Simplify right side
7,116,883.20x = 47,045,180,498,964.48 - Step 5: Solve for x
x = 47,045,180,498,964.48/7,116,883.20 - Step 6: Final answer
x = 6,610,362.88
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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.