Finding the Fourth Proportional to 7,988,416.12, 11,023,163.94 and 4,725,353.80
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Solution
The fourth proportional to 7,988,416.12, 11,023,163.94 and 4,725,353.80 is: 6,520,485.27
Step by Step Solution
- Step 1: Write the proportion equation
7,988,416.12 : 11,023,163.94 = 4,725,353.80 : x - Step 2: Convert to fraction form
7,988,416.12/11,023,163.94 = 4,725,353.80/x - Step 3: Cross multiply
7,988,416.12x = 11,023,163.94 × 4,725,353.80 - Step 4: Simplify right side
7,988,416.12x = 52,088,349,611,901.97 - Step 5: Solve for x
x = 52,088,349,611,901.97/7,988,416.12 - Step 6: Final answer
x = 6,520,485.27
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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.