Finding the Fourth Proportional to 3,992,345.10, 5,509,430.33 and 2,273,465.97
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Solution
The fourth proportional to 3,992,345.10, 5,509,430.33 and 2,273,465.97 is: 3,137,379.67
Step by Step Solution
- Step 1: Write the proportion equation
3,992,345.10 : 5,509,430.33 = 2,273,465.97 : x - Step 2: Convert to fraction form
3,992,345.10/5,509,430.33 = 2,273,465.97/x - Step 3: Cross multiply
3,992,345.10x = 5,509,430.33 × 2,273,465.97 - Step 4: Simplify right side
3,992,345.10x = 12,525,502,357,973.54 - Step 5: Solve for x
x = 12,525,502,357,973.54/3,992,345.10 - Step 6: Final answer
x = 3,137,379.67
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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.