Finding the Fourth Proportional to 7,121,434.45, 9,827,566.24 and 3,858,330.28
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Solution
The fourth proportional to 7,121,434.45, 9,827,566.24 and 3,858,330.28 is: 5,324,488.58
Step by Step Solution
- Step 1: Write the proportion equation
7,121,434.45 : 9,827,566.24 = 3,858,330.28 : x - Step 2: Convert to fraction form
7,121,434.45/9,827,566.24 = 3,858,330.28/x - Step 3: Cross multiply
7,121,434.45x = 9,827,566.24 × 3,858,330.28 - Step 4: Simplify right side
7,121,434.45x = 37,917,996,402,497.74 - Step 5: Solve for x
x = 37,917,996,402,497.74/7,121,434.45 - Step 6: Final answer
x = 5,324,488.58
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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.