Finding the Fourth Proportional to 3,658,538.51, 5,048,649.09 and 2,109,865.49
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Solution
The fourth proportional to 3,658,538.51, 5,048,649.09 and 2,109,865.49 is: 2,911,537.07
Step by Step Solution
- Step 1: Write the proportion equation
3,658,538.51 : 5,048,649.09 = 2,109,865.49 : x - Step 2: Convert to fraction form
3,658,538.51/5,048,649.09 = 2,109,865.49/x - Step 3: Cross multiply
3,658,538.51x = 5,048,649.09 × 2,109,865.49 - Step 4: Simplify right side
3,658,538.51x = 10,651,970,486,110.90 - Step 5: Solve for x
x = 10,651,970,486,110.90/3,658,538.51 - Step 6: Final answer
x = 2,911,537.07
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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.