Finding the Fourth Proportional to 258,212,598.26, 356,330,250.09 and 140,737,565.21
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Solution
The fourth proportional to 258,212,598.26, 356,330,250.09 and 140,737,565.21 is: 194,216,130.99
Step by Step Solution
- Step 1: Write the proportion equation
258,212,598.26 : 356,330,250.09 = 140,737,565.21 : x - Step 2: Convert to fraction form
258,212,598.26/356,330,250.09 = 140,737,565.21/x - Step 3: Cross multiply
258,212,598.26x = 356,330,250.09 × 140,737,565.21 - Step 4: Simplify right side
258,212,598.26x = 50,149,051,806,555,336 - Step 5: Solve for x
x = 50,149,051,806,555,336/258,212,598.26 - Step 6: Final answer
x = 194,216,130.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.