Finding the Fourth Proportional to 5,390,256.87, 7,438,659.68 and 2,942,874.17
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Solution
The fourth proportional to 5,390,256.87, 7,438,659.68 and 2,942,874.17 is: 4,061,223.79
Step by Step Solution
- Step 1: Write the proportion equation
5,390,256.87 : 7,438,659.68 = 2,942,874.17 : x - Step 2: Convert to fraction form
5,390,256.87/7,438,659.68 = 2,942,874.17/x - Step 3: Cross multiply
5,390,256.87x = 7,438,659.68 × 2,942,874.17 - Step 4: Simplify right side
5,390,256.87x = 21,891,039,435,574.74 - Step 5: Solve for x
x = 21,891,039,435,574.74/5,390,256.87 - Step 6: Final answer
x = 4,061,223.79
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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.