Finding the Fourth Proportional to 3,916,455.88, 5,404,752.66 and 2,174,243.08
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Solution
The fourth proportional to 3,916,455.88, 5,404,752.66 and 2,174,243.08 is: 3,000,479.62
Step by Step Solution
- Step 1: Write the proportion equation
3,916,455.88 : 5,404,752.66 = 2,174,243.08 : x - Step 2: Convert to fraction form
3,916,455.88/5,404,752.66 = 2,174,243.08/x - Step 3: Cross multiply
3,916,455.88x = 5,404,752.66 × 2,174,243.08 - Step 4: Simplify right side
3,916,455.88x = 11,751,246,070,116.59 - Step 5: Solve for x
x = 11,751,246,070,116.59/3,916,455.88 - Step 6: Final answer
x = 3,000,479.62
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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.