Finding the Fourth Proportional to 11,382,081.28, 15,707,775.36 and 6,554,740.48
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Solution
The fourth proportional to 11,382,081.28, 15,707,775.36 and 6,554,740.48 is: 9,045,831.64
Step by Step Solution
- Step 1: Write the proportion equation
11,382,081.28 : 15,707,775.36 = 6,554,740.48 : x - Step 2: Convert to fraction form
11,382,081.28/15,707,775.36 = 6,554,740.48/x - Step 3: Cross multiply
11,382,081.28x = 15,707,775.36 × 6,554,740.48 - Step 4: Simplify right side
11,382,081.28x = 102,960,391,002,938.58 - Step 5: Solve for x
x = 102,960,391,002,938.58/11,382,081.28 - Step 6: Final answer
x = 9,045,831.64
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1.5x scale
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.