Finding the Fourth Proportional to 3,990,655.84, 5,507,127.24 and 2,179,819.84
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Solution
The fourth proportional to 3,990,655.84, 5,507,127.24 and 2,179,819.84 is: 3,008,163.50
Step by Step Solution
- Step 1: Write the proportion equation
3,990,655.84 : 5,507,127.24 = 2,179,819.84 : x - Step 2: Convert to fraction form
3,990,655.84/5,507,127.24 = 2,179,819.84/x - Step 3: Cross multiply
3,990,655.84x = 5,507,127.24 × 2,179,819.84 - Step 4: Simplify right side
3,990,655.84x = 12,004,545,219,156.44 - Step 5: Solve for x
x = 12,004,545,219,156.44/3,990,655.84 - Step 6: Final answer
x = 3,008,163.50
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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.