Finding the Fourth Proportional to 5,368,122.38, 7,407,787.16 and 2,920,743.23
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Solution
The fourth proportional to 5,368,122.38, 7,407,787.16 and 2,920,743.23 is: 4,030,505.01
Step by Step Solution
- Step 1: Write the proportion equation
5,368,122.38 : 7,407,787.16 = 2,920,743.23 : x - Step 2: Convert to fraction form
5,368,122.38/7,407,787.16 = 2,920,743.23/x - Step 3: Cross multiply
5,368,122.38x = 7,407,787.16 × 2,920,743.23 - Step 4: Simplify right side
5,368,122.38x = 21,636,244,167,113.85 - Step 5: Solve for x
x = 21,636,244,167,113.85/5,368,122.38 - Step 6: Final answer
x = 4,030,505.01
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1.5x scale
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.