Finding the Fourth Proportional to 2,136,795.12, 3,205,445.67 and 1,338,142.68
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Solution
The fourth proportional to 2,136,795.12, 3,205,445.67 and 1,338,142.68 is: 2,007,372.45
Step by Step Solution
- Step 1: Write the proportion equation
2,136,795.12 : 3,205,445.67 = 1,338,142.68 : x - Step 2: Convert to fraction form
2,136,795.12/3,205,445.67 = 1,338,142.68/x - Step 3: Cross multiply
2,136,795.12x = 3,205,445.67 × 1,338,142.68 - Step 4: Simplify right side
2,136,795.12x = 4,289,343,659,448.20 - Step 5: Solve for x
x = 4,289,343,659,448.20/2,136,795.12 - Step 6: Final answer
x = 2,007,372.45
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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.