Finding the Fourth Proportional to 378,203,237.20, 567,304,855.80 and 232,163,250.40
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Solution
The fourth proportional to 378,203,237.20, 567,304,855.80 and 232,163,250.40 is: 348,244,875.60
Step by Step Solution
- Step 1: Write the proportion equation
378,203,237.20 : 567,304,855.80 = 232,163,250.40 : x - Step 2: Convert to fraction form
378,203,237.20/567,304,855.80 = 232,163,250.40/x - Step 3: Cross multiply
378,203,237.20x = 567,304,855.80 × 232,163,250.40 - Step 4: Simplify right side
378,203,237.20x = 131,707,339,290,231,280 - Step 5: Solve for x
x = 131,707,339,290,231,280/378,203,237.20 - Step 6: Final answer
x = 348,244,875.60
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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.