Finding the Fourth Proportional to 11,477,553.46, 15,838,832.38 and 6,321,394.78
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Solution
The fourth proportional to 11,477,553.46, 15,838,832.38 and 6,321,394.78 is: 8,723,419.38
Step by Step Solution
- Step 1: Write the proportion equation
11,477,553.46 : 15,838,832.38 = 6,321,394.78 : x - Step 2: Convert to fraction form
11,477,553.46/15,838,832.38 = 6,321,394.78/x - Step 3: Cross multiply
11,477,553.46x = 15,838,832.38 × 6,321,394.78 - Step 4: Simplify right side
11,477,553.46x = 100,123,512,328,226.98 - Step 5: Solve for x
x = 100,123,512,328,226.98/11,477,553.46 - Step 6: Final answer
x = 8,723,419.38
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1.5x scale
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.