Finding the Fourth Proportional to 2,136,668.81, 2,948,611.55 and 1,169,889.12
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Solution
The fourth proportional to 2,136,668.81, 2,948,611.55 and 1,169,889.12 is: 1,614,451.69
Step by Step Solution
- Step 1: Write the proportion equation
2,136,668.81 : 2,948,611.55 = 1,169,889.12 : x - Step 2: Convert to fraction form
2,136,668.81/2,948,611.55 = 1,169,889.12/x - Step 3: Cross multiply
2,136,668.81x = 2,948,611.55 × 1,169,889.12 - Step 4: Simplify right side
2,136,668.81x = 3,449,548,565,601.89 - Step 5: Solve for x
x = 3,449,548,565,601.89/2,136,668.81 - Step 6: Final answer
x = 1,614,451.69
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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.