Finding the Fourth Proportional to 900,383,394.96, 1,350,643,207.41 and 278,661,509.18
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Solution
The fourth proportional to 900,383,394.96, 1,350,643,207.41 and 278,661,509.18 is: 418,013,344.81
Step by Step Solution
- Step 1: Write the proportion equation
900,383,394.96 : 1,350,643,207.41 = 278,661,509.18 : x - Step 2: Convert to fraction form
900,383,394.96/1,350,643,207.41 = 278,661,509.18/x - Step 3: Cross multiply
900,383,394.96x = 1,350,643,207.41 × 278,661,509.18 - Step 4: Simplify right side
900,383,394.96x = 376,372,274,540,586,368 - Step 5: Solve for x
x = 376,372,274,540,586,368/900,383,394.96 - Step 6: Final answer
x = 418,013,344.81
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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.