Finding the Fourth Proportional to 7,221,719.36, 9,960,161.69 and 6,348,687.39
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Solution
The fourth proportional to 7,221,719.36, 9,960,161.69 and 6,348,687.39 is: 8,756,080.07
Step by Step Solution
- Step 1: Write the proportion equation
7,221,719.36 : 9,960,161.69 = 6,348,687.39 : x - Step 2: Convert to fraction form
7,221,719.36/9,960,161.69 = 6,348,687.39/x - Step 3: Cross multiply
7,221,719.36x = 9,960,161.69 × 6,348,687.39 - Step 4: Simplify right side
7,221,719.36x = 63,233,952,923,664.09 - Step 5: Solve for x
x = 63,233,952,923,664.09/7,221,719.36 - Step 6: Final answer
x = 8,756,080.07
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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.