Finding the Fourth Proportional to 3,997,756.13, 5,517,035.10 and 2,186,920.13
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Solution
The fourth proportional to 3,997,756.13, 5,517,035.10 and 2,186,920.13 is: 3,018,021.79
Step by Step Solution
- Step 1: Write the proportion equation
3,997,756.13 : 5,517,035.10 = 2,186,920.13 : x - Step 2: Convert to fraction form
3,997,756.13/5,517,035.10 = 2,186,920.13/x - Step 3: Cross multiply
3,997,756.13x = 5,517,035.10 × 2,186,920.13 - Step 4: Simplify right side
3,997,756.13x = 12,065,315,090,521.39 - Step 5: Solve for x
x = 12,065,315,090,521.39/3,997,756.13 - Step 6: Final answer
x = 3,018,021.79
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1.5x scale
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.