Finding the Fourth Proportional to 2,188,465.09, 3,020,337.99 and 1,820,292.68
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Solution
The fourth proportional to 2,188,465.09, 3,020,337.99 and 1,820,292.68 is: 2,512,216.97
Step by Step Solution
- Step 1: Write the proportion equation
2,188,465.09 : 3,020,337.99 = 1,820,292.68 : x - Step 2: Convert to fraction form
2,188,465.09/3,020,337.99 = 1,820,292.68/x - Step 3: Cross multiply
2,188,465.09x = 3,020,337.99 × 1,820,292.68 - Step 4: Simplify right side
2,188,465.09x = 5,497,899,134,322.91 - Step 5: Solve for x
x = 5,497,899,134,322.91/2,188,465.09 - Step 6: Final answer
x = 2,512,216.97
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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.