Finding the Fourth Proportional to 19,686,529.60, 27,493,956.80 and 19,686,529.60
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Solution
The fourth proportional to 19,686,529.60, 27,493,956.80 and 19,686,529.60 is: 27,493,956.80
Step by Step Solution
- Step 1: Write the proportion equation
19,686,529.60 : 27,493,956.80 = 19,686,529.60 : x - Step 2: Convert to fraction form
19,686,529.60/27,493,956.80 = 19,686,529.60/x - Step 3: Cross multiply
19,686,529.60x = 27,493,956.80 × 19,686,529.60 - Step 4: Simplify right side
19,686,529.60x = 541,260,594,364,321.31 - Step 5: Solve for x
x = 541,260,594,364,321.31/19,686,529.60 - Step 6: Final answer
x = 27,493,956.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.