Finding the Fourth Proportional to 13,529,678.60, 20,292,357.56 and 3,942,814.68
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Solution
The fourth proportional to 13,529,678.60, 20,292,357.56 and 3,942,814.68 is: 5,913,592.45
Step by Step Solution
- Step 1: Write the proportion equation
13,529,678.60 : 20,292,357.56 = 3,942,814.68 : x - Step 2: Convert to fraction form
13,529,678.60/20,292,357.56 = 3,942,814.68/x - Step 3: Cross multiply
13,529,678.60x = 20,292,357.56 × 3,942,814.68 - Step 4: Simplify right side
13,529,678.60x = 80,009,005,279,376.98 - Step 5: Solve for x
x = 80,009,005,279,376.98/13,529,678.60 - Step 6: Final answer
x = 5,913,592.45
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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.