Finding the Fourth Proportional to 5,664,859.74, 7,817,408.01 and 3,086,561.70
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Solution
The fourth proportional to 5,664,859.74, 7,817,408.01 and 3,086,561.70 is: 4,259,401.51
Step by Step Solution
- Step 1: Write the proportion equation
5,664,859.74 : 7,817,408.01 = 3,086,561.70 : x - Step 2: Convert to fraction form
5,664,859.74/7,817,408.01 = 3,086,561.70/x - Step 3: Cross multiply
5,664,859.74x = 7,817,408.01 × 3,086,561.70 - Step 4: Simplify right side
5,664,859.74x = 24,128,912,156,939.22 - Step 5: Solve for x
x = 24,128,912,156,939.22/5,664,859.74 - Step 6: Final answer
x = 4,259,401.51
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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.