Finding the Fourth Proportional to 11,498,861.70, 15,868,616.20 and 6,271,868.52
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Solution
The fourth proportional to 11,498,861.70, 15,868,616.20 and 6,271,868.52 is: 8,655,280.58
Step by Step Solution
- Step 1: Write the proportion equation
11,498,861.70 : 15,868,616.20 = 6,271,868.52 : x - Step 2: Convert to fraction form
11,498,861.70/15,868,616.20 = 6,271,868.52/x - Step 3: Cross multiply
11,498,861.70x = 15,868,616.20 × 6,271,868.52 - Step 4: Simplify right side
11,498,861.70x = 99,525,874,400,742.02 - Step 5: Solve for x
x = 99,525,874,400,742.02/11,498,861.70 - Step 6: Final answer
x = 8,655,280.58
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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.