Finding the Fourth Proportional to 5,678,991.76, 8,518,660.58 and 2,220,593.36
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Solution
The fourth proportional to 5,678,991.76, 8,518,660.58 and 2,220,593.36 is: 3,330,957.66
Step by Step Solution
- Step 1: Write the proportion equation
5,678,991.76 : 8,518,660.58 = 2,220,593.36 : x - Step 2: Convert to fraction form
5,678,991.76/8,518,660.58 = 2,220,593.36/x - Step 3: Cross multiply
5,678,991.76x = 8,518,660.58 × 2,220,593.36 - Step 4: Simplify right side
5,678,991.76x = 18,916,481,120,041.75 - Step 5: Solve for x
x = 18,916,481,120,041.75/5,678,991.76 - Step 6: Final answer
x = 3,330,957.66
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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.