Finding the Fourth Proportional to 12,766,343.45, 17,617,529.97 and 6,965,129.12
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Solution
The fourth proportional to 12,766,343.45, 17,617,529.97 and 6,965,129.12 is: 9,611,865.09
Step by Step Solution
- Step 1: Write the proportion equation
12,766,343.45 : 17,617,529.97 = 6,965,129.12 : x - Step 2: Convert to fraction form
12,766,343.45/17,617,529.97 = 6,965,129.12/x - Step 3: Cross multiply
12,766,343.45x = 17,617,529.97 × 6,965,129.12 - Step 4: Simplify right side
12,766,343.45x = 122,708,370,928,432.08 - Step 5: Solve for x
x = 122,708,370,928,432.08/12,766,343.45 - Step 6: Final answer
x = 9,611,865.09
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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.