Finding the Fourth Proportional to 31,257,965.88, 43,112,272.23 and 27,383,760.99
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Solution
The fourth proportional to 31,257,965.88, 43,112,272.23 and 27,383,760.99 is: 37,768,809.49
Step by Step Solution
- Step 1: Write the proportion equation
31,257,965.88 : 43,112,272.23 = 27,383,760.99 : x - Step 2: Convert to fraction form
31,257,965.88/43,112,272.23 = 27,383,760.99/x - Step 3: Cross multiply
31,257,965.88x = 43,112,272.23 × 27,383,760.99 - Step 4: Simplify right side
31,257,965.88x = 1,180,576,158,482,134.25 - Step 5: Solve for x
x = 1,180,576,158,482,134.25/31,257,965.88 - Step 6: Final answer
x = 37,768,809.49
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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.