Finding the Fourth Proportional to 10,979,386.09, 16,453,932.33 and 7,922,393.84
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Solution
The fourth proportional to 10,979,386.09, 16,453,932.33 and 7,922,393.84 is: 11,872,661.28
Step by Step Solution
- Step 1: Write the proportion equation
10,979,386.09 : 16,453,932.33 = 7,922,393.84 : x - Step 2: Convert to fraction form
10,979,386.09/16,453,932.33 = 7,922,393.84/x - Step 3: Cross multiply
10,979,386.09x = 16,453,932.33 × 7,922,393.84 - Step 4: Simplify right side
10,979,386.09x = 130,354,532,134,968.84 - Step 5: Solve for x
x = 130,354,532,134,968.84/10,979,386.09 - Step 6: Final answer
x = 11,872,661.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.