Finding the Fourth Proportional to 2,857,638.38, 3,943,398.13 and 1,696,135.10
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Solution
The fourth proportional to 2,857,638.38, 3,943,398.13 and 1,696,135.10 is: 2,340,581.66
Step by Step Solution
- Step 1: Write the proportion equation
2,857,638.38 : 3,943,398.13 = 1,696,135.10 : x - Step 2: Convert to fraction form
2,857,638.38/3,943,398.13 = 1,696,135.10/x - Step 3: Cross multiply
2,857,638.38x = 3,943,398.13 × 1,696,135.10 - Step 4: Simplify right side
2,857,638.38x = 6,688,535,957,610.03 - Step 5: Solve for x
x = 6,688,535,957,610.03/2,857,638.38 - Step 6: Final answer
x = 2,340,581.66
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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.