Finding the Fourth Proportional to 12,239,837.60, 18,364,276.20 and 5,051,994.80
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Solution
The fourth proportional to 12,239,837.60, 18,364,276.20 and 5,051,994.80 is: 7,579,857.75
Step by Step Solution
- Step 1: Write the proportion equation
12,239,837.60 : 18,364,276.20 = 5,051,994.80 : x - Step 2: Convert to fraction form
12,239,837.60/18,364,276.20 = 5,051,994.80/x - Step 3: Cross multiply
12,239,837.60x = 18,364,276.20 × 5,051,994.80 - Step 4: Simplify right side
12,239,837.60x = 92,776,227,868,163.75 - Step 5: Solve for x
x = 92,776,227,868,163.75/12,239,837.60 - Step 6: Final answer
x = 7,579,857.75
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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.