Finding the Fourth Proportional to 5,382,676.19, 7,428,272.47 and 2,935,420.76
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Solution
The fourth proportional to 5,382,676.19, 7,428,272.47 and 2,935,420.76 is: 4,050,978.44
Step by Step Solution
- Step 1: Write the proportion equation
5,382,676.19 : 7,428,272.47 = 2,935,420.76 : x - Step 2: Convert to fraction form
5,382,676.19/7,428,272.47 = 2,935,420.76/x - Step 3: Cross multiply
5,382,676.19x = 7,428,272.47 × 2,935,420.76 - Step 4: Simplify right side
5,382,676.19x = 21,805,105,230,606.61 - Step 5: Solve for x
x = 21,805,105,230,606.61/5,382,676.19 - Step 6: Final answer
x = 4,050,978.44
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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.