Finding the Fourth Proportional to 3,882,607.40, 5,358,050.70 and 2,163,669.14
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Solution
The fourth proportional to 3,882,607.40, 5,358,050.70 and 2,163,669.14 is: 2,985,892.66
Step by Step Solution
- Step 1: Write the proportion equation
3,882,607.40 : 5,358,050.70 = 2,163,669.14 : x - Step 2: Convert to fraction form
3,882,607.40/5,358,050.70 = 2,163,669.14/x - Step 3: Cross multiply
3,882,607.40x = 5,358,050.70 × 2,163,669.14 - Step 4: Simplify right side
3,882,607.40x = 11,593,048,950,145.40 - Step 5: Solve for x
x = 11,593,048,950,145.40/3,882,607.40 - Step 6: Final answer
x = 2,985,892.66
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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.