Finding the Fourth Proportional to 11,657,257.60, 17,485,886.40 and 8,256,035.20
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Solution
The fourth proportional to 11,657,257.60, 17,485,886.40 and 8,256,035.20 is: 12,384,052.80
Step by Step Solution
- Step 1: Write the proportion equation
11,657,257.60 : 17,485,886.40 = 8,256,035.20 : x - Step 2: Convert to fraction form
11,657,257.60/17,485,886.40 = 8,256,035.20/x - Step 3: Cross multiply
11,657,257.60x = 17,485,886.40 × 8,256,035.20 - Step 4: Simplify right side
11,657,257.60x = 144,364,093,621,601.28 - Step 5: Solve for x
x = 144,364,093,621,601.28/11,657,257.60 - Step 6: Final answer
x = 12,384,052.80
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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.