Finding the Fourth Proportional to 11,657,908.70, 17,486,863.05 and 8,485,300.70
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Solution
The fourth proportional to 11,657,908.70, 17,486,863.05 and 8,485,300.70 is: 12,727,951.05
Step by Step Solution
- Step 1: Write the proportion equation
11,657,908.70 : 17,486,863.05 = 8,485,300.70 : x - Step 2: Convert to fraction form
11,657,908.70/17,486,863.05 = 8,485,300.70/x - Step 3: Cross multiply
11,657,908.70x = 17,486,863.05 × 8,485,300.70 - Step 4: Simplify right side
11,657,908.70x = 148,381,291,278,969.12 - Step 5: Solve for x
x = 148,381,291,278,969.12/11,657,908.70 - Step 6: Final answer
x = 12,727,951.05
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1.5x scale
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.