Finding the Fourth Proportional to 5,706,874.97, 7,875,486.77 and 3,128,573.96
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Solution
The fourth proportional to 5,706,874.97, 7,875,486.77 and 3,128,573.96 is: 4,317,431.69
Step by Step Solution
- Step 1: Write the proportion equation
5,706,874.97 : 7,875,486.77 = 3,128,573.96 : x - Step 2: Convert to fraction form
5,706,874.97/7,875,486.77 = 3,128,573.96/x - Step 3: Cross multiply
5,706,874.97x = 7,875,486.77 × 3,128,573.96 - Step 4: Simplify right side
5,706,874.97x = 24,639,042,799,390.51 - Step 5: Solve for x
x = 24,639,042,799,390.51/5,706,874.97 - Step 6: Final answer
x = 4,317,431.69
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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.