Finding the Fourth Proportional to 4,785,394.36, 6,603,661.72 and 2,639,218.36
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Solution
The fourth proportional to 4,785,394.36, 6,603,661.72 and 2,639,218.36 is: 3,642,020.69
Step by Step Solution
- Step 1: Write the proportion equation
4,785,394.36 : 6,603,661.72 = 2,639,218.36 : x - Step 2: Convert to fraction form
4,785,394.36/6,603,661.72 = 2,639,218.36/x - Step 3: Cross multiply
4,785,394.36x = 6,603,661.72 × 2,639,218.36 - Step 4: Simplify right side
4,785,394.36x = 17,428,505,254,653.18 - Step 5: Solve for x
x = 17,428,505,254,653.18/4,785,394.36 - Step 6: Final answer
x = 3,642,020.69
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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.