Finding the Fourth Proportional to 3,561,612.87, 4,915,029.87 and 1,930,005.99
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Solution
The fourth proportional to 3,561,612.87, 4,915,029.87 and 1,930,005.99 is: 2,663,410.49
Step by Step Solution
- Step 1: Write the proportion equation
3,561,612.87 : 4,915,029.87 = 1,930,005.99 : x - Step 2: Convert to fraction form
3,561,612.87/4,915,029.87 = 1,930,005.99/x - Step 3: Cross multiply
3,561,612.87x = 4,915,029.87 × 1,930,005.99 - Step 4: Simplify right side
3,561,612.87x = 9,486,037,090,128.92 - Step 5: Solve for x
x = 9,486,037,090,128.92/3,561,612.87 - Step 6: Final answer
x = 2,663,410.49
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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.