Finding the Fourth Proportional to 2,910,509.84, 3,987,416.92 and 2,801,421.92
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Solution
The fourth proportional to 2,910,509.84, 3,987,416.92 and 2,801,421.92 is: 3,837,965.78
Step by Step Solution
- Step 1: Write the proportion equation
2,910,509.84 : 3,987,416.92 = 2,801,421.92 : x - Step 2: Convert to fraction form
2,910,509.84/3,987,416.92 = 2,801,421.92/x - Step 3: Cross multiply
2,910,509.84x = 3,987,416.92 × 2,801,421.92 - Step 4: Simplify right side
2,910,509.84x = 11,170,437,163,866.89 - Step 5: Solve for x
x = 11,170,437,163,866.89/2,910,509.84 - Step 6: Final answer
x = 3,837,965.78
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.