Finding the Fourth Proportional to 2,990,202.06, 4,131,876.58 and 2,129,267.64
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Solution
The fourth proportional to 2,990,202.06, 4,131,876.58 and 2,129,267.64 is: 2,942,232.97
Step by Step Solution
- Step 1: Write the proportion equation
2,990,202.06 : 4,131,876.58 = 2,129,267.64 : x - Step 2: Convert to fraction form
2,990,202.06/4,131,876.58 = 2,129,267.64/x - Step 3: Cross multiply
2,990,202.06x = 4,131,876.58 × 2,129,267.64 - Step 4: Simplify right side
2,990,202.06x = 8,797,871,094,267.87 - Step 5: Solve for x
x = 8,797,871,094,267.87/2,990,202.06 - Step 6: Final answer
x = 2,942,232.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.