Finding the Fourth Proportional to 6,428,552.07, 9,642,237.60 and 2,168,757.21
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Solution
The fourth proportional to 6,428,552.07, 9,642,237.60 and 2,168,757.21 is: 3,252,936.60
Step by Step Solution
- Step 1: Write the proportion equation
6,428,552.07 : 9,642,237.60 = 2,168,757.21 : x - Step 2: Convert to fraction form
6,428,552.07/9,642,237.60 = 2,168,757.21/x - Step 3: Cross multiply
6,428,552.07x = 9,642,237.60 × 2,168,757.21 - Step 4: Simplify right side
6,428,552.07x = 20,911,672,315,533.09 - Step 5: Solve for x
x = 20,911,672,315,533.09/6,428,552.07 - Step 6: Final answer
x = 3,252,936.60
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1.5x scale
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.