Finding the Fourth Proportional to 3,921,615.16, 5,411,710.98 and 2,179,278.70
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Solution
The fourth proportional to 3,921,615.16, 5,411,710.98 and 2,179,278.70 is: 3,007,339.07
Step by Step Solution
- Step 1: Write the proportion equation
3,921,615.16 : 5,411,710.98 = 2,179,278.70 : x - Step 2: Convert to fraction form
3,921,615.16/5,411,710.98 = 2,179,278.70/x - Step 3: Cross multiply
3,921,615.16x = 5,411,710.98 × 2,179,278.70 - Step 4: Simplify right side
3,921,615.16x = 11,793,626,469,270.13 - Step 5: Solve for x
x = 11,793,626,469,270.13/3,921,615.16 - Step 6: Final answer
x = 3,007,339.07
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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.