Finding the Fourth Proportional to 428,052,575.14, 641,921,371.37 and 147,862,184.68
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Solution
The fourth proportional to 428,052,575.14, 641,921,371.37 and 147,862,184.68 is: 221,738,874.80
Step by Step Solution
- Step 1: Write the proportion equation
428,052,575.14 : 641,921,371.37 = 147,862,184.68 : x - Step 2: Convert to fraction form
428,052,575.14/641,921,371.37 = 147,862,184.68/x - Step 3: Cross multiply
428,052,575.14x = 641,921,371.37 × 147,862,184.68 - Step 4: Simplify right side
428,052,575.14x = 94,915,896,364,784,944 - Step 5: Solve for x
x = 94,915,896,364,784,944/428,052,575.14 - Step 6: Final answer
x = 221,738,874.80
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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.