Finding the Fourth Proportional to 4,703,166.38, 6,490,438.57 and 2,638,638.38
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Solution
The fourth proportional to 4,703,166.38, 6,490,438.57 and 2,638,638.38 is: 3,641,359.66
Step by Step Solution
- Step 1: Write the proportion equation
4,703,166.38 : 6,490,438.57 = 2,638,638.38 : x - Step 2: Convert to fraction form
4,703,166.38/6,490,438.57 = 2,638,638.38/x - Step 3: Cross multiply
4,703,166.38x = 6,490,438.57 × 2,638,638.38 - Step 4: Simplify right side
4,703,166.38x = 17,125,920,333,358.71 - Step 5: Solve for x
x = 17,125,920,333,358.71/4,703,166.38 - Step 6: Final answer
x = 3,641,359.66
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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.