Finding the Fourth Proportional to 423,150,873.26, 634,436,542.11 and 215,487,306.32
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Solution
The fourth proportional to 423,150,873.26, 634,436,542.11 and 215,487,306.32 is: 323,083,396.80
Step by Step Solution
- Step 1: Write the proportion equation
423,150,873.26 : 634,436,542.11 = 215,487,306.32 : x - Step 2: Convert to fraction form
423,150,873.26/634,436,542.11 = 215,487,306.32/x - Step 3: Cross multiply
423,150,873.26x = 634,436,542.11 × 215,487,306.32 - Step 4: Simplify right side
423,150,873.26x = 136,713,021,490,259,152 - Step 5: Solve for x
x = 136,713,021,490,259,152/423,150,873.26 - Step 6: Final answer
x = 323,083,396.80
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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.