Finding the Fourth Proportional to 7,121,251.91, 9,827,329.92 and 3,858,089.15
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Solution
The fourth proportional to 7,121,251.91, 9,827,329.92 and 3,858,089.15 is: 5,324,164.26
Step by Step Solution
- Step 1: Write the proportion equation
7,121,251.91 : 9,827,329.92 = 3,858,089.15 : x - Step 2: Convert to fraction form
7,121,251.91/9,827,329.92 = 3,858,089.15/x - Step 3: Cross multiply
7,121,251.91x = 9,827,329.92 × 3,858,089.15 - Step 4: Simplify right side
7,121,251.91x = 37,914,714,937,822.37 - Step 5: Solve for x
x = 37,914,714,937,822.37/7,121,251.91 - Step 6: Final answer
x = 5,324,164.26
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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.