Finding the Fourth Proportional to 5,157,668.58, 7,117,453.36 and 2,865,835.14
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Solution
The fourth proportional to 5,157,668.58, 7,117,453.36 and 2,865,835.14 is: 3,954,780.66
Step by Step Solution
- Step 1: Write the proportion equation
5,157,668.58 : 7,117,453.36 = 2,865,835.14 : x - Step 2: Convert to fraction form
5,157,668.58/7,117,453.36 = 2,865,835.14/x - Step 3: Cross multiply
5,157,668.58x = 7,117,453.36 × 2,865,835.14 - Step 4: Simplify right side
5,157,668.58x = 20,397,447,946,399.07 - Step 5: Solve for x
x = 20,397,447,946,399.07/5,157,668.58 - Step 6: Final answer
x = 3,954,780.66
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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.