Finding the Fourth Proportional to 10,381,745.90, 15,572,618.85 and 2,808,711.65
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Solution
The fourth proportional to 10,381,745.90, 15,572,618.85 and 2,808,711.65 is: 4,213,067.48
Step by Step Solution
- Step 1: Write the proportion equation
10,381,745.90 : 15,572,618.85 = 2,808,711.65 : x - Step 2: Convert to fraction form
10,381,745.90/15,572,618.85 = 2,808,711.65/x - Step 3: Cross multiply
10,381,745.90x = 15,572,618.85 × 2,808,711.65 - Step 4: Simplify right side
10,381,745.90x = 43,738,995,985,004.60 - Step 5: Solve for x
x = 43,738,995,985,004.60/10,381,745.90 - Step 6: Final answer
x = 4,213,067.48
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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.