Finding the Fourth Proportional to 419,918,496.80, 629,877,745.20 and 343,328,007.20
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Solution
The fourth proportional to 419,918,496.80, 629,877,745.20 and 343,328,007.20 is: 514,992,010.80
Step by Step Solution
- Step 1: Write the proportion equation
419,918,496.80 : 629,877,745.20 = 343,328,007.20 : x - Step 2: Convert to fraction form
419,918,496.80/629,877,745.20 = 343,328,007.20/x - Step 3: Cross multiply
419,918,496.80x = 629,877,745.20 × 343,328,007.20 - Step 4: Simplify right side
419,918,496.80x = 216,254,671,039,145,376 - Step 5: Solve for x
x = 216,254,671,039,145,376/419,918,496.80 - Step 6: Final answer
x = 514,992,010.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.