Finding the Fourth Proportional to 3,777,781.18, 5,666,118.15 and 1,858,177.13
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Solution
The fourth proportional to 3,777,781.18, 5,666,118.15 and 1,858,177.13 is: 2,786,993.38
Step by Step Solution
- Step 1: Write the proportion equation
3,777,781.18 : 5,666,118.15 = 1,858,177.13 : x - Step 2: Convert to fraction form
3,777,781.18/5,666,118.15 = 1,858,177.13/x - Step 3: Cross multiply
3,777,781.18x = 5,666,118.15 × 1,858,177.13 - Step 4: Simplify right side
3,777,781.18x = 10,528,651,165,499.63 - Step 5: Solve for x
x = 10,528,651,165,499.63/3,777,781.18 - Step 6: Final answer
x = 2,786,993.38
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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.