Finding the Fourth Proportional to 7,381,335.80, 11,072,003.70 and 6,353,883.20
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Solution
The fourth proportional to 7,381,335.80, 11,072,003.70 and 6,353,883.20 is: 9,530,824.80
Step by Step Solution
- Step 1: Write the proportion equation
7,381,335.80 : 11,072,003.70 = 6,353,883.20 : x - Step 2: Convert to fraction form
7,381,335.80/11,072,003.70 = 6,353,883.20/x - Step 3: Cross multiply
7,381,335.80x = 11,072,003.70 × 6,353,883.20 - Step 4: Simplify right side
7,381,335.80x = 70,350,218,299,767.84 - Step 5: Solve for x
x = 70,350,218,299,767.84/7,381,335.80 - Step 6: Final answer
x = 9,530,824.80
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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.