Finding the Fourth Proportional to 3,559,979.36, 4,912,526.67 and 1,990,009.82
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Solution
The fourth proportional to 3,559,979.36, 4,912,526.67 and 1,990,009.82 is: 2,746,076.68
Step by Step Solution
- Step 1: Write the proportion equation
3,559,979.36 : 4,912,526.67 = 1,990,009.82 : x - Step 2: Convert to fraction form
3,559,979.36/4,912,526.67 = 1,990,009.82/x - Step 3: Cross multiply
3,559,979.36x = 4,912,526.67 × 1,990,009.82 - Step 4: Simplify right side
3,559,979.36x = 9,775,976,314,311.90 - Step 5: Solve for x
x = 9,775,976,314,311.90/3,559,979.36 - Step 6: Final answer
x = 2,746,076.68
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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.