Finding the Fourth Proportional to 2,136,808.15, 2,948,795.67 and 1,169,938.69
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Solution
The fourth proportional to 2,136,808.15, 2,948,795.67 and 1,169,938.69 is: 1,614,515.62
Step by Step Solution
- Step 1: Write the proportion equation
2,136,808.15 : 2,948,795.67 = 1,169,938.69 : x - Step 2: Convert to fraction form
2,136,808.15/2,948,795.67 = 1,169,938.69/x - Step 3: Cross multiply
2,136,808.15x = 2,948,795.67 × 1,169,938.69 - Step 4: Simplify right side
2,136,808.15x = 3,449,910,143,237.47 - Step 5: Solve for x
x = 3,449,910,143,237.47/2,136,808.15 - Step 6: Final answer
x = 1,614,515.62
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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.